thumb

noun1 of 2

the short, thick finger on the side of your hand

• “When I was a kid, I was all thumbs.”Tatoeba
• “All photographs are already on a thumb drive.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

verb2 of 2

(with through) To turn the pages of (a book) in order to read it cursorily.