The meaning of LACK is to be deficient or missing. How to use lack in a sentence.

LACK definition: 1. the fact that something is not available or that there is not enough of it: 2. to not have or…. Learn more.

lack (læk) n. 1. deficiency or absence of something needed or desirable: lack of money; lack of skill. 2. something missing or wanted: After he left, they really felt the lack.

Find 129 different ways to say LACK, along with antonyms, related words, and example sentences at Thesaurus.com.

LACK definition: an absence or inadequate amount of something needed, desirable, or customary. See examples of lack used in a sentence.

If there is a lack of something, there is not enough of it or it does not exist at all.

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Salt Lake City leaders say they're thrilled about several bills that passed in 2026 — and relieved that some efforts failed. A man already facing charges of child kidnaping and rape of a child has...

lack (third-person singular simple present lacks, present participle lacking, simple past and past participle lacked) (transitive, stative) To be without, not to have, to need, to require.

Jan 20, 2026 · lack (third-person singular simple present lacks, present participle lacking, simple past and past participle lacked) (transitive, stative) To be without, not to have, to need, to require.