IPA: /ʌnˈskruː/
KK: /ʌnˈskru/
To turn something in a counterclockwise direction to remove it from a threaded connection.
He had to unscrew the lid to open the jar.
Past: unscrewed
Past Participle: unscrewed
To remove a screw by turning it in the opposite direction from how it was tightened.
I need to unscrew the lid to open the jar.
Past: unscrewed
Past Participle: unscrewed
Unscrew → It is formed from "un-" (meaning not or opposite of) and "screw" (from Old French *escroue*, meaning a metal fastener). The word "unscrew" means to remove a screw, or to reverse the action of screwing something in.
Think of 'un-' meaning not or the opposite, and 'screw' as a metal fastener. This helps you remember that 'unscrew' means to take out a screw.