turn-by-turnadj.
/ˌtəːnbʌɪˈtəːn/, U.S. /ˌtərnbaɪˈtərn/ 1. Alternating; characterized by alternation. Cf. by turns at turn n. Phrases 1a(b).
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1958 Shakespeare Q. 9 463 The turn-by-turn chant of lines.
2004 D. Francis & S. Hester Invitation to Ethnomethodology vi. 97 The sequential, turn-by-turn character of conversation.
2. Designating directions or instructions provided (now esp. by GPS or a GPS system) as a vehicle approaches each turn or navigation point. Also: designating a navigation system providing such instructions.
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1969 Washington Post 1 Apr. a16/2 Area navigation would allow pilots to land without extensive turn-by-turn instructions from ground-based controllers.
1986 G. Helfer & C. Helfer Bicycling Central & Southern Maryland 10 Each route has a starting place, a map, and turn-by-turn directions.
1996 GPS World May 59/2 Turn-by-turn (TBT) route guidance systems using graphical and sound cues will represent the preferred form of vehicular navigation systems.
2014 M. Rothblatt Virtually Human i. 44 People..are waiting for their..smartphone to provide a search result, or turn-by-turn driving instructions.
This entry has been updated (OED Third Edition, June 2022).
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adj.1958