tweak

US /twik/

UK /twi:k/

C1
v.t.Transitive VerbTo make a small change or adjustment
The engineers tweak the settings of the machine to make it run quieter
n. (c.)Countable NounA small change or adjustment
I wanted to tweak the recipe a bit and substitute yogurt for ice cream
v.t.Transitive VerbTo pinch or pull (something) sharply.
She playfully tweaked his ear.
v.i.Intransitive VerbTo behave in an odd or nervous way
He was tweaking nervously before the presentation.

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