Initialism of Australian Council of Trade Unions.

(historical units of measure) A former Roman unit of length, equal to 120 Roman feet (about 35.5 m)

(law) An act, or series of acts, considered as separate from the intentions or state of mind of the perpetrator in the context of criminal law.

plural of actus reus

(law) A doctrine of law that, in certain circumstances, an intervening event can break the chain of causation between a person's action and its result, potentially depriving that person of legal liability for the result; such an intervening event.

(modal) In act or in fact; really; in truth; positively. / (obsolete) Actively.

(chiefly theology) relating to a person's acts or deeds; active, practical / Existing in reality, not just potentially; really acted or acting; occurring in fact.

(finance) something actually received; real receipts, as distinct from estimated ones.

making actual or really existent

Of or pertaining to actuaries. / Relating to statistical calculation, especially pertaining to insurance.