Abbreviation of サービスエリア.

rest; take a rest

a rest; a break

(dialectal Kanto, Tōhoku, Hokkaidō) sentence-ending particle indicating emphasis / (colloquial, men's speech) sentence-ending particle indicating familiarity or assertion

next, order, sequence, below

next, secondary / following

number of times: an ordinal marker / number in a sequence, number of aspects or dimensions

(rare) order, sequence

(attached to nouns) the next, secondary, vice- / (chemistry) hypo- (used to distinguish the oxidation levels of various acids)

(Shinto) at the 大嘗祭 (Daijōsai) and other major Shintō ceremonies, refers to the group of regional representatives making offerings of sake and grain, who do so after the initial offering