(pharmacology) Initialism of angiotensin receptor blocker.

(finance, trading) The act of or potential for arbitrage. / (countable, finance, trading) One who engages in arbitrage; an arbitrageur. / (countable, informal) An arboretum.

(finance, trading, transitive) To engage in arbitrage.

(law) Abbreviation of arbitrator.

simple past tense and past participle of arb

plural of arb

plural of ARB

present participle of arb

(usually of a decision) Based on individual discretion or judgment; not based on any objective distinction, perhaps even made at random. / Determined by impulse rather than reason; heavy-handed.

Anything arbitrary, such as an arithmetical value or a fee.