Usage

Radical

favoring revolutionary changes.

6 Comments

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Concave vs. convex

A concave surface curves inward. A convex surface curves outward.

Reactionary vs. reactive

Reactionary: very politically conservative. Reactive: 1. tending to react; 2. characterized by reaction.

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Lonely vs. lonesome

There is not much difference between them in practical usage.

1 Comment

Quid pro quo

1. reciprocal exchange; 2. reciprocal.

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Arrant vs. errant

Arrant = complete. Errant = roving or straying from the proper course.

2 Comments

Rife vs. ripe

Rife: abundant. Ripe: 1. fully mature; 2. fully prepared to undergo something; 3. smelly.

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Onboard vs. On board

On board: aboard. Onboard: an adjective preceding the noun it modifies.