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She has a knack for solving puzzles.
She naturally excels at solving puzzles.
An acquired or natural skill at doing something.
He has a knack for making people feel at ease.
He naturally makes people feel comfortable.
My grandmother had a knack for baking delicious cakes.
My grandmother was naturally skilled at baking delicious cakes.
Often implies an innate talent or ease with a task, but can also describe a learned skill.
Don't confuse 'knack' with 'knacker' (a person who slaughters worn-out livestock) or 'knackered' (exhausted). 'Knack' always relates to skill or ability.
Use 'knack' when describing someone's ability to do something well, whether innate or developed. It implies ease and proficiency.
Late Middle English (originally in the sense 'a clever trick or stratagem'): perhaps from a dialect variant of Old English cnæcc 'a knot,' related to cnyccan 'to knit.' The current sense of 'natural skill' dates from the late 16th century.
Used to describe both innate abilities and skills developed through practice. Often followed by 'for' + gerund/noun (e.g., 'a knack for languages').