Q.e.n.

Latin quare executionem non (wherefore execution [should] not [be issued])

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Qeshm
/ˈkɛʃəm/ noun 1. the largest island in the Persian Gulf: part of Iran. Area: 1336 sq km (516 sq miles) 2. the chief town of this island
Qf
1. . abbreviation 1. quick-firing quick-firing
Q-factor
[kyoo-fak-ter] /ˈkyuˌfæk tər/ noun 1. See (def 6).