swim

1 swim /ˈswɪm/ verb
swims; swam /ˈswæm/ ; swum /ˈswʌm/ ; swimming
1 swim
/ˈswɪm/
verb
swims; swam /ˈswæm/ ; swum /ˈswʌm/ ; swimming
Britannica Dictionary definition of SWIM
1 
a  [no object] : to move through water by moving your arms and legs
— see also swimming
b  [+ object] : to move through or across (an area of water) by swimming
c  [+ object] : to swim by using (a specified method)
d  [no object] of a fish, bird, etc. : to move through or over water
2 
[no object] : to be completely covered with a liquid — usually used as (be) swimming in
3 
[no object]
a  : to feel dizzy or unable to think clearly because you are sick, confused, etc.
b  of something you are looking at : to seem to be moving around because you are tired, sick, etc.

sink or swim

— see 1sink

swim with/against the tide

— see 1tide
2 swim /ˈswɪm/ noun
plural swims
2 swim
/ˈswɪm/
noun
plural swims
Britannica Dictionary definition of SWIM
[count]
: an act or period of swimming — usually singular

in/into the swim (of things)

informal
: involved in an activity or informed about a situation