To bind by mutual agreement.
To adjust and settle by mutual concessions; to compound.
To find a way between extremes.
To pledge by some act or declaration; to endanger the life, reputation, etc., of, by some act which can not be recalled; to expose to suspicion.
To cause impairment of.
To breach (a security system).
He tried to compromise the security in the computer by guessing the password.
Willing or able to compromise
Vulnerable to suspicion