Gaeltacht
noun
Gael·tacht ˈgāl-təḵt 
: any of the Irish-speaking regions remaining in Ireland
Word History
Etymology
Irish, from Gael, spelling variant of Gaedheal Irishman, Gael
First Known Use
1910, in the meaning defined above
- on the street
- on the strength of
- on the string
- on the stump
- on the sunny side of
- on the supposition that
- on the surface
- on the table
- on the take
- on the tapis
- on the telephone
- on the television
- on the telly
- on the threshold
- on the tiles
- on the tip of one's tongue
- on the town
- on the trot
- on the turn
- on the understanding that
- on the up
- on the up and up
- on the upside
- on the upswing
- on the verge of