0 past simple and past participle of compromise
1 to accept that you will reduce your demands or change your opinion in order to reach an agreement with someone:
Party unity is threatened when members will not compromise.
Well, you want $400 and I say $300, so let's compromise at/on $350.
2 to allow your principles to be less strong or your standards or morals to be lower:
3 to risk having a harmful effect on something:
We would never compromise the safety of our passengers.
Somebody will have to compromise if we are to break the deadlock between the two warring factions.
The reluctance of either side to compromise means that the talks are doomed to fail.
The antagonists in this dispute are quite unwilling to compromise.
The dispute had reached an impasse, as neither side would compromise.
They have become irreconcilable, with both sides refusing to compromise any further.
The leadership compromised but refused to hold an open primary.
Since the human samples available for analysis are non-viable discarded material, they are potentially compromised.
At a more clinical level, virtually all cognitive screening tests have a correlation with compromised driving ability.