back entrance(n = noun.artifact) back door, backdoor - an entrance at the rear of a building; Array
is a kind of exterior door, outside door

answer back, back, back and fill, back and forth, back away, back brace, back breaker, back burner, back channel, back circle, back country, back door, back down, back end, back exercise, back fire, back judge, back matter, back number, back of beyond, back off, back out, back pack, back porch, back room, back saw, back scratching, back seat, back stairs, back street, back talk, back to back, back tooth, back up, back way, beat back, bounce back, break one's back, bring back, buy back, call back, carry back, ceding back, choke back, come back, come back at, coming back, cut back, date back, die back, double back, draw back, drive back, drop back, entrance, entrance exam, entrance examination, entrance fee, entrance hall, entrance money, fall back, fat back, feed back, fight back, flanker back, flash back, force back, from way back, front entrance, get back, get back at, give back, go back, go back on, go back over, hang back, hark back, hold back, keep back, kick back, knock back, lean back, look back, move back, move back and forth, pat on the back, pay back, paying back, play back, pull back, push back, put back, rear back, relation back, roll back, running back, send back, servant's entrance, service entrance, set back, shrink back, side entrance, sink back, sit back, slide back, slip back, snap back, stand back, strike back, take back, talk back, think back, throw back, thrust back, toss back, travel back and forth, trim back, turn back, water back, watteau back, win back