tsūyōkikan
1. period of validity
Noun
#536048
1. period of validity
1. limited time
2. limited-time offer
1. (means of) transportation; transport
1. machine gun
1. administrative organ; administrative body
1. financial institutions; banking facilities
1. information media; press
1. (common) use (of a language, currency, etc.); current use
2. to be accepted (e.g. of a way of thinking); to work (of an excuse, trick, etc.)
3. going in and out; entrance and exit
1. period; term
1. short term; short time