I remember my English teacher saying that there are only two valid ways to make a one-word sentence:

  • A question:

    Why? Where?

  • A command:

    Go! Stop!

Is this correct?


Interrogatives (who?), imperatives (stop), declaratives (me), locatives (here), and nominatives (Jane) all allow for single-word statements, as do adjectives, adverbs and so on. You'd be hard-pressed to find a category of words that are not amenable to the possibility.

In general, in almost all things pertaining to our language, you will discover that everything your English teacher taught you is wrong. See Theodore Bernstein's Miss Thistlebottom's Hobgoblins for extended commentary on this point.

  • Hehe! It's like you knew my English teacher. – Urbycoz May 18 '11 at 13:45
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    Everyone's English teacher is the same, more or less. Many would also claim the one-word questions in your example are invalid. – Random832 May 18 '11 at 16:42


There are many other ways to make one-word sentences.

Q. Where are you going?

A. Home.

And so on.


  • Good. I thought it couldn't be true. I'll have to look my old teacher up. – Urbycoz May 18 '11 at 13:44
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    @Urbycoz: Be nice! Teachers mean well. But tell him/her that any answer to a question may be a single word. "What's your favorite color? Black." "When are you going? Now." "Who's your favorite person? Me." And yadda yadda. – Robusto May 18 '11 at 14:58
  • Wonder why he thought it was the case though. He clearly considered answering a question with a single non-question, non-command word was grammatically incorrect. – Urbycoz May 18 '11 at 15:16

That's what your teacher said, eh?

Fine. Great. Right. Correct. Granted. Absolutely. Beautiful. Amazing.


Your English teacher is probably correct in the sense that those are the only complete, grammatically-correct sentences that contain only one word. But in common writing we often use one-word statements that are not complete sentences. Like Robusto's example, "Where are you going?" "Home." "Home." is not really a "sentence" as it contains neither a subject nor a verb but just an object. It conveys no clear meaning by itself, but only when heard with the preceding question. But I wouldn't be afraid to use such statements. They're perfectly acceptable to all but the most annoying pedants.

When I was in school, teachers often insisted that on a test, all answers must be complete sentences. So if the question was, say, "What is the capital of France?", a student who wrote "Paris" would be marked wrong. The student was required to write, "The capital of France is Paris." Which always struck me as rather silly: the question is right there, the teacher and I both know what it is, why do I need to repeat it? I recall my chemistry teacher once saying that on his tests it was NOT necessary to do this. That if he asked, "What chemical reaction occurs when you mix NaCl and AgNO3?", you should just write the resultant chemicals, it was not necessary to write, "Yes indeed, a chemical reaction occurs when you mix NaCl and AgNO3. ..."

  • Re "It conveys no clear meaning by itself": Blatantly false. What exactly is unclear? – Pacerier Mar 25 '17 at 1:20
  • As I said in my post, the word "home" as a statement conveys no clear meaning without the context of the question, "Where are you going?" Or, of course, some other context that would give it meaning. If I said, "Automobile sales are up 5% this year" and you replied, "Home", what would that mean? – Jay Mar 29 '17 at 13:47

There is an additional method of formulating a one word sentence.


The use of the "..." eludes, more to come, but is a valid use of a single-word sentence.


The single word sentences that reply to a question are not valid sentences in written English. They might be valid in a spoken conversation but in written English (outside of direct speech) they are elliptical. A valid sentence (as opposed to a spoken utterance) requires, at the very least a subject and a verb (e.g. 'Birds fly.'). In the creation of a grammatical correct written sentence, a minimum of two words are necessary.

  • 1
    What (and why) does being elliptical invalidate 'outside of direct speech' but not in spoken English? I'd agree that a sentence is defined as containing a subject and a main verb at the bare minimum, but 'sentence substitutes', while obviously not being sentences, are widely accepted as not 'being ungrammatical'. See grammar.about.com/od/rs/g/sentfragterm.htm : Though in traditional grammar sentence fragments are usually treated as grammatical errors, they are commonly used by professional writers to create emphasis or particular stylistic effects , and Nordquist's 'Crots' link. – Edwin Ashworth Jan 23 '13 at 15:32
  • This answer is circular reasoning. Of course a one-word sentence is not a sentence if you define a sentence as something that cannot be a single word. By way of exaggeration, I might as well define a sentence as something that includes a 24-letter loanword from Russian, in which case nothing on this page is a sentence. But that's pointless. The question is not what definition you can make up, but how useful it is, who does use it at all, and what happens to all the other stuff that doesn't meet it. (If "Help!" is not a sentence, what is it?) – RegDwigнt Jan 23 '13 at 16:21
  • The issue is not an arbitrary rule that a sentence must contain at least 14 letters or some such, but rather that a sentence must contain a subject and a verb. If it has no subject, then who is doing the action? If it has no verb, then what are they doing? Imperatives can be just one word because the subject is an implied "you". A very long string of words could fail this test, like "The large gray house on the top of the hill with flowers all around and a long winding driveway" is not a complete sentence because it has no verb. – Jay Oct 22 '15 at 13:23

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