Thesaurus
Find synonyms and antonyms for any word to vary your writing — with the caution that near-synonyms are rarely interchangeable.
Means like
Broadly similar in meaning — the widest net, and the least precise.
Synonyms
A narrow lexical relation, so a much shorter and stricter list.
Antonyms
Opposites — a far rarer relation than synonymy, so this one is often empty.
Associated with
Words this one tends to bring to mind, related or not.
More general
The category this belongs to — "sparrow" gives "bird".
More specific
Kinds of this thing — "bird" gives "sparrow".
Part of
What this is a part of — "finger" gives "hand".
Made up of
What this comprises — "hand" gives "finger".
Described as
Adjectives commonly applied to this noun.
Describes
Nouns this adjective is commonly applied to.
Recent
Two of the sections above answer what looks like the same question and do not return the same list. Means like is a similarity score across the whole vocabulary, so it is generous and will happily hand you words that are merely in the same area. Synonyms is a narrow lexical relation, so it is short, strict and often empty. A thesaurus that shows only one of them is hiding the disagreement, and the disagreement is usually the useful part — if a word appears in both, it is a genuinely safe substitution. The four structural relations underneath them — more general, more specific, part of, made up of — are the ones no printed thesaurus has room for. Rhymes for any of these live on the Rhyme Dictionary.
How to use
- Enter a word.
- Browse synonyms and antonyms.
- Check any unfamiliar word in a dictionary before using it.
- Prefer the word you already know if none is clearly better.
Frequently asked questions
Are synonyms actually interchangeable?
Almost never entirely. Slim, slender, thin, skinny and gaunt all describe the same physical fact and carry quite different attitudes toward it. A thesaurus lists words near each other in meaning; it cannot tell you which one fits your sentence, and substituting blindly is how writing goes wrong.
What is register?
How formal or informal a word is. Purchase, buy and pick up mean the same thing at different levels of formality, and mixing registers within a sentence reads as awkward even to someone who could not name the problem. It is the most common casualty of thesaurus use.
Should I use a thesaurus to avoid repeating a word?
Cautiously. Deliberate repetition is often clearer than reaching for a variant, and the habit of never repeating a noun produces the strained style sometimes called elegant variation — where a writer calls the same thing three different names and confuses the reader about whether they are the same thing.
What does a thesaurus do well?
Recovering a word you know but cannot retrieve, and finding a more precise term when the one you have is vague. Both start from a meaning you already hold — which is exactly the case where the list will not mislead you.
Are the antonyms reliable?
Less so than synonyms, because many words have no clean opposite. The antonym of a word with several senses depends on which sense you meant, and abstract words often have no antonym at all. Treat them as suggestions rather than pairs.
Why do unfamiliar words often read badly?
Because knowing a word's definition is not knowing its usage — which prepositions it takes, what it collocates with, and what tone it carries. That knowledge comes from having read the word in context. Using a word you have never encountered in the wild is detectable more often than writers expect.
🌐 This tool looks up results using the free Datamuse word API. The word you enter is sent to that service to fetch results; nothing is stored by this site.