Now, make use of the construction you have learned for telling what your or your friend's occupation is. Here are some professions:

• aisteoir actor
• aistritheoir translator
• amhránaí singer
• amhránaí sean-nóis traditional Irish-style singer. Sean-nós means "old way, old style", and it refers to the traditional a cappella singing style still extant in the Irish-speaking communities. Sean-nóis is the genitive form meaning "of old way". Thus, literally translated, amhránaí sean-nóis means "a singer of old style", but "an old-style singer" captures the sense better.
• ateangaire interpreter
• bean rialta nun
• bitheolaí biologist
• breitheamh judge
• ceoltóir musician
• cóipscríbhneoir copywriter
• craoltóir broadcaster
• cuntasóir accountant
• díoltóir leabhar bookseller
• dochtúir doctor
• eaglaiseach churchman, clergyman
• easpag bishop
• fealsamh philosopher (philosophy is fealsúnacht)
• fear gnó businessman
• feirmeoir farmer
• file poet
• foghlaí mara pirate
• gadaí thief
• garda policeman, police officer (in Ireland; in other countries, péas and póilín might be more appropriate)
• geallghlacadóir bookmaker, turf-accountant
• innealtóir bogearraí software engineer
• iriseoir journalist
• mac léinn student
• mairnéalach sailor
• manach monk, friar
• ministir (Protestant) minister
• múinteoir teacher
• nuachtánaí reporter
• ollamh professor
• peasghadaí pickpocket
• ríomhinnealtóir computer engineer, computer specialist
• rúnaí secretary (a secret is rún)
• sagart (Catholic) priest
• saighdiúir soldier
• scoláire scholar
• scríbhneoir writer
• siopadóir shopkeeper
• siúinéir carpenter, joiner
• spásaire spaceman, astronaut
• táilliúir tailor
• teangaire interpreter
• tiománaí driver
• tiománaí leoraí lorry-driver
• tiománaí tacsaí taxi driver
• tuíodóir thatcher
• údar author
• úinéir owner. Well, of course it makes little sense to say that someone is an "owner" by profession, but you could say, for instance, úinéir monarchan, a factory-owner. Factory is monarcha in Irish, genitive form ("a factory's", "of a factory") is monarchan, and a factory-owner will thus be úinéir monarchan.