Fromallan +‎-fa, -ma.

• IPA^(key):/aˈɬanva/
• Rhymes:-anva

allanfa f (pluralallanfeydd)

1. exit,way out,outlet,opening

   Antonym:mynedfa

• allanfa dân(“fire exit”)
• allanfa frys(“emergency exit”)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “allanfa”, inGeiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies