act. in English dictionary act. Meanings and definitions of "act." abbreviation of acting (grammar) abbreviation of active abbreviation of actual (plural) abbreviation of activities (singular) abbreviation of actor (singular) abbreviation of actuary adjective Abbreviation of [i]acting[/i]. adjective (grammar) Abbreviation of [i]active[/i]. adjective Abbreviation of [i]actual[/i]. noun (plural) Abbreviation of [i]activities[/i]. noun Abbreviation of [i]actor[/i]. noun Abbreviation of [i]actuary[/i]. more Grammar and declension of act. act. ( comparative more act., superlative most act.) act. ( already plural in one sense ; plural of singular senses * acts.) more Act. Meanings and definitions of "act." proper Abbreviation of [i]Acts[/i]. more Sample sentences with "act." Declension Stem Try again Available translations Slovenian Authors