a submarine

the yachtsman claimed his boat had been sunk by a sub

a substitute, especially in a sporting team

the team pulled back with a goal from sub Chris Malkin

they brought on a trio of subs in an effort to try to inject some energy into the attack

a person who takes the submissive role in BDSM sexual activities

there's a major aspect of trust granted by the sub to the dom

he declared himself as my dom and I assumed the sub role

a subscription

the annual sub for the golf club will be £200

a subeditor

the chief sub would be responsible for the look of the paper

an advance or loan against expected income

‘I've got no money.’ ‘Want a sub?’

replace or be replaced; substitute

he got a lot of applause when he was subbed

he subbed for Armstrong at some gigs

lend or advance a sum to (someone) against expected income

who'll sub me till Thursday?

subedit

his copy was mercilessly subbed and rewritten