opuszek palca in English:

Ruth pushed the doorbell with her fingertip and waited for someone to let her in.

A bright red ladybug landed on my fingertip.

I burnt my fingertip.

Can you spin a basketball on your fingertip?

Only his fingertips and toes rest against the wall when he climbs.

fingertip /ˈfɪŋɡətɪp; US / noun [countable] the end of your finger ▶ koniuszek palca

She pushed the box open with her fingertips.