The meaning of COMPOUND is something formed by a union of elements or parts; especially : a distinct substance formed by chemical union of two or more ingredients in definite proportion by weight.

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The atoms in a compound are bonded together by strong chemical bonds, such as ionic or covalent bonds, which give the compound its unique structure and properties.

a word that combines two or more different words. Often, the meaning of the compound cannot be discovered by knowing the meaning of the different words that form it. Compounds may be written …

If you compound a problem you add something to it to make it worse, like say, putting water on a grease fire. Compound means to combine; a compound is a combination or mixture of two or more things.

To compound a problem, difficulty, or mistake means to make it worse by adding to it.

Feb 21, 2026 · compound (third-person singular simple present compounds, present participle compounding, simple past and past participle compounded) (transitive) To form (a resulting mixture) …

Oct 24, 2020 · A compound consists of two or more elements chemically bonded in a fixed ratio. All compounds are examples of molecules, but molecules also include substances consisting of only …

(music) An octave higher than originally (i.e. a compound major second is equivalent to a major ninth).

having or involving two or more actions or functions: The mouth is a compound organ. Grammar of or pertaining to a compound sentence or compound-complex sentence.