extn n stresses
nautic.	расширение
English thesaurus
extn. abbr.
abbr., earth.sc.	extract (ion)
abbr., econ.	extension
polym.	extraction
extn abbr.
abbr., mech.eng.	extrusion
mil.	extension
EXTN abbr.
abbr., busin.	extraction
Nasdaq	Extensity, Inc.