It means to have conflict with or with contention.
Oppose means is to have conflict with or contention. Oppose is to resist a particular action, idea, thought, movement(usually in case of political parties, unions etc), germs(In case of human body). The word Oppose is from word French word opposer which is from Latin word opponere, which is formed of two words, "op" and "ponere". Op means Against and Ponere means to Place and thus word means To Place Against and it came in English from there. Also Visit Oppose definition, Usage Examples and Synonyms.
I acknowledge opposing interests and take constructive action to address them