1) Abandons 2) Admits defeat 3) Calls it a day 4) Cuts out 5) Equal 6) Even-stephen 7) Gives up 8) Goes cold turkey 9) Hangs it up 10) Opts for the pension 11) Relinquishes a job 12) Resigns 13) Throws in the towel 14) To abandon an effort 15) What a resignee calls it 16) What some call it 17) What to call it 1) Atonement 2) Ceases 3) Ends 4) Equal 5) Stops 
• (interj.) See the Note under Quit, a.
Quits (kwĭts) interj. See the Note under Quit , adjective 
[adj] - on equal terms by payment or requital
adjective on equal terms by payment or requital; `we`re now quits`; `finally quits with the loan`
on equal terms by repayment or retaliation. · At 10 o'clock I decided to call it quits for the day. · to end one's activity, esp. temporarily:At 10 o'clock I decided to call it quits for the day. · to abandon an effort.