Walkthrough vs Walk Through: Which Is Correct?

Unlike most spelling mix-ups, walkthrough vs walk through is not a case of one right answer and one wrong one. Both forms are correct English; they simply belong to different parts of speech, and using the wrong one puts a noun where a verb should be, or the reverse. The one-word walkthrough is a noun: it names a thing, a step-by-step guide, tour, or demonstration, as in "I followed the walkthrough" or "she gave us a walkthrough of the new app." The two-word walk through is a verb phrase: it describes an action, moving through a place or reviewing something step by step, as in "we walked through the gallery" or "let me walk you through the budget." The difference is the same pattern that separates login from log in and setup from set up: when the words name a thing they join together, and when they do the work of a verb they stay apart. That makes walkthrough vs walk through a useful entry among commonly confused words, because once you learn the noun-versus-verb test, you can settle a whole class of these open-and-closed compounds. This guide shows how to tell them apart, why the split exists, and a trick to choose correctly every time.

Are Both Correct?

Yes. This is the key point that sets walkthrough vs walk through apart from a pair like foward and forward, where one is simply a misspelling. Here, both forms appear in dictionaries and both are right, but they are not interchangeable. Walkthrough, the closed-up single word, is listed as a noun. Walk through, the open two-word version, is a verb followed by a preposition or adverb. Swapping one for the other does not create a new word so much as a grammatical mismatch, writing a noun where the sentence needs a verb.

The reason there are two forms at all is a normal process in English. Many noun compounds begin life as two separate words that often appear together, and over time the pair fuses into one word, sometimes pausing at a hyphen along the way. The verb stays open because verbs in English resist being welded to their particles; we keep "walk through," "log in," and "set up" as separate words when they are doing an action. The result is a tidy division of labor: the same root meaning, split into a one-word noun and a two-word verb.

You will also meet the hyphenated walk-through, and it is not an error. Several dictionaries record walk-through as a noun spelling, and in some contexts, a real-estate inspection or a rehearsal run, it is the more common form. The trend, especially in gaming and software, has moved toward the solid walkthrough, but if you write walk-through for the noun you are on safe ground. What is never correct is hyphenating the verb: the action is always the open two words, walk through. So the live choice is really between the one-word noun (walkthrough, or walk-through) and the two-word verb (walk through).

What Each One Means

The two forms share a core idea, moving through something, but they package it differently.

Walkthrough (noun) names a guide that takes you through a process or place step by step. In video games, a walkthrough is a written or recorded guide that leads a player through a level or puzzle. In software, a walkthrough is a demonstration that shows a user how a feature works. In business and real estate, a walkthrough can be a guided inspection or an explanatory tour. In every case it is a thing you can have, give, read, watch, or follow: "the walkthrough was helpful," "post a walkthrough," "we did a final walkthrough before closing."

Walk through (verb) describes the act itself, and it has two everyday senses. Literally, it means to move on foot through a space: "we walked through the park," "she walked through the door." Figuratively, it means to go over something carefully, point by point, often guiding someone else: "let me walk through the agenda," "he walked me through the setup." This second sense is where the noun came from, the act of walking someone through a process, but as a verb it stays two words.

Notice how the same situation can use both. "Our agent walked us through the property" uses the verb, the action of touring; "our agent gave us a walkthrough of the property" uses the noun, the tour as a thing. Both sentences are correct, and each chooses its form by the role the word plays in the sentence, not by the topic.

Why People Mix Them Up

If both forms are correct, why is the pair so easy to muddle? The trouble comes from the closeness of the two meanings and from the broader uncertainty English speakers feel about open and closed compounds.

The first cause is that the noun and verb describe nearly the same idea, so the topic does not signal which form to use. Whether you are giving a guide or doing the guiding, you are "walking someone through" something. Because the meaning barely shifts, writers reach for whichever spelling comes to mind first, and often that is the wrong part of speech, writing "can you walkthrough the steps?" (verb meaning, but the noun spelling) or "I read the walk through" (noun meaning, but the verb spelling).

The second cause is that English is genuinely inconsistent about these compounds, and people know it. We have login and log in, setup and set up, breakdown and break down, pickup and pick up, each pair splitting a one-word noun from a two-word verb, but there is no visible marker telling you which is which beyond the grammar. Writers who have been burned by these pairs sometimes overcorrect, joining words that should stay apart or splitting words that should join. Walkthrough vs walk through is simply another member of this family, and it inherits the same uncertainty.

The fix is to stop thinking about the topic and ask a grammatical question instead: in this sentence, is the word naming a thing or doing an action? That single test, covered next, resolves nearly every case.

Examples in Sentences

Seeing the noun and the verb side by side, in matched situations, makes the split clear.

Correct uses of walkthrough (noun, one word):

• This game has a detailed walkthrough for the final boss.
• She recorded a walkthrough of the new dashboard.
• We scheduled a final walkthrough before the wedding.
• Post your walkthrough so others can follow it.

Correct uses of walk through (verb, two words):

• Let me walk through the plan one more time.
• They walked through the old house room by room.
• Can you walk me through the setup steps?
• He walked through the door without knocking.

Wrong → right corrections:

• Can you walkthrough the process with me? → Can you walk through the process with me? (action = verb)
• I followed the walk through on YouTube. → I followed the walkthrough on YouTube. (a thing = noun)
• We did a final walk through of the apartment. → We did a final walkthrough of the apartment. (a thing = noun)
• She will walkthrough the slides at the meeting. → She will walk through the slides at the meeting. (action = verb)

In each case the spelling follows the part of speech: a named thing joins into one word, an action stays as two.

Walkthrough vs Walk Through: Side by Side

The table sets the one-word noun against the two-word verb and notes how each behaves.

Aspect	Walkthrough	Walk through
Part of speech	Noun (one word; walk-through also valid)	Verb phrase (two words)
Meaning	A step-by-step guide, tour, or demonstration	To move through, or to review step by step
Test	Can take the or a; names a thing	Walk does an action; through shows where or how
Example	"Read the walkthrough."	"Walk through the steps."
Hyphen	walk-through accepted for the noun	never hyphenated
Common error	using it as a verb	using it as a noun

One column names a thing and joins up; the other describes an action and stays apart. The grammar of the sentence, not its subject, tells you which column you are in.

How to Remember

The cleanest trick is one question: is it a thing or an action? A thing you can read, watch, give, or follow is one word, a walkthrough. An action, walking or going over something, is two words, to walk through. Noun joins, verb splits.

A quick test for the noun is to try putting "the" or "a" in front. If "the walkthrough" or "a walkthrough" sounds right and names something, you want the single word. A test for the verb is to see whether "walk" is doing an action with a subject behind it: "she walked through," "I'll walk you through." If walk is the action, keep the two words.

It also helps to lean on the family this pair belongs to. Login and log in, setup and set up, pickup and pick up, breakdown and break down, all split a one-word noun from a two-word verb in exactly the same way. If you already write "please log in" (verb) but "use your login" (noun), you know the pattern; walkthrough and walk through follow it precisely. When in doubt, name a thing in one word, do an action in two.

Related Spelling Mixups

Walkthrough vs walk through belongs to a family of confusions where the right choice depends on grammar rather than on a single letter. If this pair gave you pause, two related cases are worth a look. The first is ect vs etc, where the correct abbreviation is fixed by what the underlying Latin words actually are, not by how it sounds. The second is don'ts or dont's, where the question is where an apostrophe belongs when a contraction is made plural. Each makes the same point as walkthrough vs walk through: understanding how a word is built and used is what tells you how to write it.

Conclusion

Walkthrough vs walk through is not a contest between right and wrong but a question of part of speech. Walkthrough, the single word, is a noun that names a step-by-step guide, tour, or demonstration; the hyphenated walk-through is an accepted noun spelling too. Walk through, the two words, is a verb phrase meaning to move through a place or to review something point by point, and the verb is never joined or hyphenated. The pair is easy to muddle because the meanings sit so close and because English is inconsistent about open and closed compounds, but the cure is a single test: ask whether the word names a thing or describes an action. A thing is one word, an action is two, just as with login and log in or setup and set up. Apply that test and you will place each form correctly every time. For more pairs where grammar, not spelling, decides the answer, browse the full collection of commonly confused words.