Nouns

(n)regular, habitue, fixturea regular patron“an habitue of the racetrack”, “a bum who is a Central Park fixture”
(n)regulara soldier in the regular army
(n)regulara dependable follower (especially in party politics)“he is one of the party regulars”
(n)regulara garment size for persons of average height and weight

Adjectives

(a)regularin accordance with fixed order or procedure or principle“his regular calls on his customers”, “regular meals”, “regular duties”
(s)regular, veritableoften used as intensifiers“a regular morass of details”, “a regular nincompoop”, “he's a veritable swine”
(s)regularconforming to a standard or pattern“following the regular procedure of the legislature”, “a regular electrical outlet”
(s)regularregularly scheduled for fixed times“at a regular meeting of the PTA”, “regular bus departures”
(s)regularin accord with regular practice or procedure“took his regular morning walk”, “her regular bedtime”
(s)even, regularoccurring at fixed intervals“a regular beat”, “the even rhythm of his breathing”
(s)regular, steadyrelating to a person who does something regularly“a regular customer”, “a steady drinker”
(a)regular(used of the military) belonging to or engaged in by legitimate army forces“the regular army”
(a)regular(of solids) having clear dimensions that can be measured; volume can be determined with a suitable geometric formula
(a)unconstipated, regularnot constipated
(s)even, regularsymmetrically arranged“even features”, “regular features”, “a regular polygon”
(s)regularnot deviating from what is normal“her regular bedtime”
(s)regularofficially full-time“regular students”