a seat hanging from ropes or chains, usually used by children play on by moving it forwards and backwards using their legs:
seat with ropes[countable]DLO
a porch swing
a curved movement made with your arm, leg etc:
He took a swing at (=tried to hit) my head and missed.
the swing of her hips as she walked
a noticeable change in opinions or emotions
swing to/towards/between etc
a big swing towards right-wing ideology
She suffers from mood swings.
the movement you make when you hit the ball in golf, baseball, or some other sports:
I spent months correcting my swing.
a type of dance music played by a big band in the 1930s and 1940s that is similar to jazz
to become fully involved in an activity:
Once we got into the swing of it, it took no time at all.
if an event or process is in full swing, it has reached its highest level of activity:
By midnight the end-of-course party was in full swing.
8 British English
if a party or activity goes with a swing, it is enjoyable and successful:
everything you need to make your party go with a swing
9 British English
used to say that two choices have an equal number of gains and losses, so there is little difference between them