Learn how to say Opponents correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word opponent:
someone who competes with or opposes another in a contest, game, or argument:
he beat his Republican opponent by a landslide margin
a person who disagrees with or resists a proposal or practice:
an opponent of the economic reforms
late 16th century (denoting a person opening an academic debate by proposing objections to a philosophical or religious thesis): from Latin opponent- ‘setting against’, from the verb opponere, from ob- ‘against’ + ponere ‘place’