Something that can be added to a basic model or formulation; an add-on or enhancement.

(derogatory) A foolish or dull-witted person.

(transitive, now rare, archaic) To adjudge; to try, test. / (transitive, obsolete) To deem; think; judge; esteem; account; determine; be of an opinion.

A large African antelope (Addax nasomaculatus), with long horns, that lives in the desert.

(transitive) To bring forward or offer, as an argument, passage, or consideration which bears on a statement or case; to cite; to allege.

By way of addition; in addition to; also.

Causing or tending to cause addiction; habit-forming. / Enjoyable. / Characterized by or susceptible to addiction.

A drug that causes an addiction. / Anything that is very habit-forming.

A person who is addicted, especially to a harmful drug / An adherent or fan (of something)

(transitive, Ancient Rome) To deliver (someone or something) following a judicial decision. / (reflexive, now rare, archaic) To devote (oneself) to a given activity, occupation, thing etc.