marker..
a marker
the marker
The plural of "el rotulador" is "los rotuladores."
A felt tip pen in Spanish is called "un marcador de punta de fieltro" or simply "un rotulador."
I hope you mean 'What do the initials 'UN' mean - United Nations.
un tabier doesn't mean anything, un tablier means un apron
It's "un accomplissement" and it does mean an accomplishment or fulfillment
Un fou is a madman.
Un rossignol is a nightingale.
un yaourt is a yogurt
Un cheval is a horse.
'en un' = 'in a'