1. Tir - Noun
2. Tir - Proper noun
Tir
The fourth solar month of the Persian calendar.
Tir
(Armenian mythology) A scribe/writer god, in Hellenistic times identified with the Greek Apollo.
TIR
(road transport, international law) The Convention on International Transport of Goods Under Cover of TIR Carnets.
TIR (plural TIRs)
Initialism of total internal reflection.
Ken Piaggio previously worked for TIR Systems Ltd. Source: Internet
Supporting trade and development for more than 60 years, TIR is governed by the United Nations TIR Convention and its treaty bodies and administered by UNECE. Source: Internet