highfive

noun
UK /ˌhaɪˈfaɪv/
US /ˌhaɪˈfaɪv/

A high five is when two people hit their open hands together to say hello or well done.

The teammates gave each other a high five after winning the game.


OTHER MEANINGS

2. To hit someone's raised open hand with your own as a greeting or celebration.

She high-fived her brother when he finished his homework.

3. A gesture of congratulations or agreement made by slapping palms.

The coach gave the player a high five for scoring the goal.

4. An act of praise or encouragement shown by slapping hands.

He got a high five from his teacher for helping a classmate.