Choose the correct word for each definition.

Choose the correct option.

Something people are used to trusting in. [A belonging|A belief|A belter]
A tradition. [A custom|A casting|A cushion]
Good enough to be used. [Accustomed|Acknowledged|Acceptable]
A system of beliefs (usually with a god or gods). [A relict|A religion|A reliance]
To be. [To exit|To examine|To exist]
A way to say hello. [A milkshake|A handshake|A handmill]