1) Abbreviation on a map 2) Ad hoc lang 3) Ancient lang 4) Ancient language 5) Atlas fig 6) Back muscle 7) Back muscle briefly 8) Back muscle for short 9) Back muscle, casually 10) Back muscle, to a bodybuilder 11) Back muscle, to a gym rat 12) Back muscle, to billy blanks 13) Back muscle, to gym regulars 
Latitude
• (v. t.) To let; to allow.
Los Angeles Times
abbreviation: latitude
LatitudeLocal Access Terminal + Local Area Transport [DEC]
Lat (lăt) transitive verb To let; to allow. [ Obsolete] Chaucer. 
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The Lat is the currency of Latvia. One Lat equals 100 santims.Lat is a name given to pillars common to all the styles of Indian architecture. With the Buddhists they bore inscriptions on their shafts, with emblems or animals on their capitals. They are among the most original and often the most elegant productions of ancient Indian architecture.Lat is British military slang for a latrine (toilet).
Lateral
(NETWORK GLOSSARY) Local area transport. A network virtual terminal protocol developed by Digital Equipment Corporation.
Local Area Transport. DECnet's method for communication between terminals and terminal servers. LAT cannot be routed.