opener

US /ˈopənɚ/

UK /ˈəʊpnə(r)/

A2
n. (c./u.)Noun (Countable/Uncountable)Device for opening things e.g. a bottle
I need the can opener to get into this tin of milk
n. (c./u.)Noun (Countable/Uncountable)First event in a series
They play the opener of the competition on Sunday

Video subtitles

You See It Everyday but Never Googled What It's For

08:09You See It Everyday but Never Googled What It's For