(n.) To resist or antagonize by physical means, or by arguments, etc.; to contend against; to confront; to resist; to withstand; as, to oppose the king in battle; to oppose a bill in Congress.

(2):

(v. i.) To act adversely or in opposition; - with against or to; as, a servant opposed against the act.

(3):

(v. i.) To make objection or opposition in controversy.

(4):

(n.) To compete with; to strive against; as, to oppose a rival for a prize.

(5):

(v. i.) To be set opposite.

(6):

(n.) To put in opposition, with a view to counterbalance or countervail; to set against; to offer antagonistically.

(7):

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

Bibliography Information
Webster, Noah. Entry for 'Oppose'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/o/oppose.html. 1828.

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Webster's Dictionary

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Oppose