lack
/lak/
Lack describes a void where something necessary or desired should be. It focuses on the absence of a requirement, creating a feeling of deficiency or incompleteness. Unlike "shortage," which often implies there is some of the resource but not enough to meet demand, "lack" can denote a total absence. While "deficit" is technical and financial, "lack" is versatile, applying to physical objects, abstract qualities (e.g., lack of courage), or systemic failures. It generally carries a negative connotation because it implies a missing piece that prevents a desired outcome from being achieved.
Countable when referring to specific instances of deficiency (e.g., there were several lacks in the original plan). Uncountable when referring to the general state of being deficient (e.g., a lack of courage).
💬Casual Conversation
This whole pitch deck has a serious lack of focus. David's gonna rip it apart.
For sure. He's always on about 'synergy' but gives us zero direction.
Meanings
Collocations & Compounds
lack of confidence
The absence of self-assurance or belief in one's own abilities.
Her lack of confidence prevented her from applying for the promotion.
lack of sleep
The state of not getting enough sleep.
He was irritable due to his lack of sleep.
lack of evidence
The absence of proof or supporting information.
The case was dismissed due to a lack of evidence.
lack of funds
A shortage of money.
The project was halted because of a lack of funds.
lack of understanding
The absence of comprehension or awareness.
There was a lack of understanding between the two departments.
Phrasal Verbs
lack for
To be in need of something; to not have enough of something.
He doesn't lack for anything; he has everything he could ever want.
Idioms & Sayings
lack is the mother of invention
When people do not have something, they are forced to think of new ways to get it or to do without it.
My car broke down, but I managed to fix it myself; indeed, lack is the mother of invention.
lack of a better word
Used to indicate that the speaker is using a word or phrase that may not be perfectly accurate but is the closest available option.
He was, for lack of a better word, a genius.