To struggle or exert oneself to obtain or retain possession of, or to defend.
To be in opposition; to contest; to dispute; to vie; to quarrel; to fight.
To be in debate; to engage in discussion; to dispute; to argue.
To believe (something is reasonable) and argue (for it); to advocate.
contend with: To try to cope with a difficulty or problem.
To metaphorically surrender, yield control or possession.
To give up, abandon or retire from something. To trade away.
To let go (free, away), physically release.
To accept to give up, withdraw etc.