(electrochemistry) An electron donor and its corresponding electron acceptor form.

A softcover edition of a previously hardcover book, usually produced with the exact same text as the hardcover.

(intransitive) To separate into groups of two. / (transitive) To join two people into a relationship.

(transitive) To send away, with belongings, for a long time.

(transitive, usually used in the passive) To fill with spectators / (transitive) To bring something (often waste) away when one leaves a natural environment like a campground.

(soccer) A pass back to the person who just passed the ball.

(transitive, figuratively) To superficially hide or disguise (a problem or a defect) without addressing it; to provide a veneer of normality or success.

(sexuality) Uninhibited, high-risk sexual activity accompanied by the use of recreational drugs.

(intransitive) To engage in such activity.

Attalea maripa, a large palm of tropical South America.