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1. lumen (unit of luminous flux)
Noun
#192957
1. lumen (unit of luminous flux)
1. lumen
1. Was a lumen.
1. Was lumen.
1. It wasn't lumen.
1. Lumen is.; It is Lumen.
1. It's not lumen.; It isn't lumen.
1. Probably lumen.; It will likely be lumen.
1. If lumen; When lumen
1. Not lumen.; Is not lumen.