The difference between Contest and Oppose

When used as verbs, contest means to contend, whereas oppose means to attempt to stop the progression of.

Contest is also noun with the meaning: controversy.

check bellow for the other definitions of Contest and Oppose

Contest as a noun (uncountable):

Controversy; debate.

Examples:

"no contest"
Contest as a noun (uncountable):

Struggle for superiority; combat.
Contest as a noun (countable):

A competition.

Examples:

"The child entered the spelling contest."

Contest as a verb (intransitive):

To contend.

Examples:

"I will contest for the open seat on the board."
Contest as a verb (transitive):

To call into question; to oppose.

Examples:

"The rival contested the dictator's re-election because of claims of voting irregularities."
Contest as a verb (transitive):

To strive earnestly to hold or maintain; to struggle to defend.

Examples:

"The troops contested every inch of ground."
Contest as a verb (legal):

To make a subject of litigation; to defend, as a suit; to dispute or resist, as a claim, by course of law; to controvert.

Oppose as a verb:

To attempt to stop the progression of; to resist or antagonize by physical means, or by arguments, etc.; to contend against; to confront; to resist; to withstand.

Examples:

"to oppose the king in battle; to oppose a bill in Congress"

"There is still time to oppose this plan."
Oppose as a verb:

To object to.

Examples:

"Many religious leaders oppose cloning humans."
Oppose as a verb:

To present or set up in opposition; to pose.

Examples:

"They are opposed to any form of hierarchy."
Oppose as a verb:

To place in front of, or over against; to set opposite; to exhibit.