What is another word for "outpost"?

Roget's Thesaurus (1911) lists these synonyms for "outpost": about, advance, advanced, afternoon, ahead, all, ambient, and, anterior, anteriority, arch, around, atmosphere, autumn, autumnal, banlieue, beak, bedtime, before, begird, belt, bend, beset, border, bow, brow, candlelight, circumambient, circumference, circumferential, circumfluent, circumjacence, circumjacent, circumscribe, circumvent, close, coin, come, compass, confront.