Fall+back
61fall back — intransitive verb Date: 1607 retreat, recede …
62fall-back — noun A variant form of fallback …
63fall back — verb To retreat. Syn: ebb, ebb away, recede, retreat …
64fall back on — (Roget s IV) v. Syn. turn to, have recourse to, rely on; see resort to , trust 1 …
65fall back — retreat, recede; fail to keep a promise …
66fall back on — have recourse to, rely on …
67fall back — 1. Recede, retreat, give way, retire, yield. 2. [With on or upon.] Rally, retreat, retire …
68fall back on — Syn: resort to, turn to, look to, call on, have recourse to …
69ˌfall ˈback — phrasal verb to move so that you are behind someone or something …
70fall back — A technique used by modems to adjust their data rate in response to changing line conditions …