contend against someone or something
to fight or compete against someone or something. Do we have to contend against all this criticism? Ed refuses to have to contend against Eric.
contend with a problem
to put up with a difficulty; to struggle with the problems caused by someone or something. I cannot contend with your temper anymore. I wish we did not have to contend with this changeable weather.
contend with someone (for something)
and contend (with someone) for somethingto fight someone for something; to compete with someone to win something. I don't want to have to contend with Sally for the award. I don't want to have to contend for the job with Ed.