(pharmacology) Used to form names of artemisinin-related compounds used as antimalarial agents.

A surname.

Pronunciation spelling of heart.

(law, grammar) Abbreviation of article.

(law) plural of art. Abbreviation of articles.

Abbreviation of assisted reproductive technology. / Abbreviation of Androgen Replacement Therapy. / Abbreviation of Active Release Technique. / Abbreviation of Adaptive resonance theory.

(video games) Acronym of action real-time strategy.

plural of art.

The study of languages and literature. / The study of literature, philosophy, and the arts. / The liberal arts.

(archaic) second-person singular simple present form of be