fòn — phone, a phone call in Scottish Gaelic, with every form

fònphone, a phone callmasculine noun

the: am fòn
after a preposition: an fhòn
of the: an fhòn
plural: fònaichean
the (plural): na fònaichean

Every form but the headword, the genitive and the plural is worked out by the spelling rules in the grammar guide, so what you see here is what the guide teaches. Checked by a fluent speaker.

In a phrase ✓ Verified

Cuiridh mi fòn thugadI'll phone you
Cuir fòn airson carbad-eiridinn!Call an ambulance!