- 1tweak something to pull or twist something suddenly She tweaked his ear playfully.
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- 2tweak something to make slight changes to a machine, system, etc. to improve it I think you'll have to tweak these figures a little before you show them to the boss.
tweak
verbNAmE//twik//
Verb Forms present simple I / you / we / they tweak he / she / it tweaks
past simple tweaked
-ing form tweaking
Check pronunciation: tweak