O

obair-lannsa: surgery
Obar Bhrothaig: Arbroath
oidhirp: attempt
oighreachd: estate
ollamh: professor
̣raidichean: lecturers
̣trach: rubbish dump
̣trachas: sewage

opinion poll: cunntas-bheachd
outside: air a’ bhlàr a-muigh