How To Spell IRST?
How to Pronounce IRST?
Correct pronunciation for the word "IRST" is [ˈɜːst], [ˈɜːst], [ˈɜː_s_t].
What are the misspellings for IRST?
Usage over time for IRST:
This graph shows how "IRST" have occurred between 1800 and 2008 in a corpus of English books.