n. 25B6; adjective a solo flight : UNACCOMPANIED, single-handed, companionless, unescorted, unattended, unchaperoned, independent, solitary; alone, on one's own, by oneself.
accompanied.
25B6; adverb she sailed solo : UNACCOMPANIED, alone, on one's own, single-handed(ly), by oneself, unescorted, unattended, unchaperoned, unaided, independently.
accompanied.