How do you pronounce 喃字?

Q: How do you pronounce 喃字? A: naam4 zi6, e.g.

喃字 (naam4 zi6) — meaning, pronunciation, examples

喃字 (naam4 zi6, nán zì) — Vietnam characters (like Chinese characters but native to Vietnam)

喃喃自語 (naam4 naam4 zi6 jyu5) — to mumble to oneself
喃嘸佬 (naam4 m4 lou2) — monk; people carry out religious rituals during funeral as a job
喃嘸費 (naam4 mo4 fai3) — fees for having sex with a night club hostess [colloquial]
喃 (naam4) — to mumble in repetition; to mutter; to murmur
喃喃 (naam4 naam4) — (onom.) to mutter; to mumble; to murmur
南丫島 (naam4 aa1 dou2) — Lamma Island, an island situated in the southern seas of Hong Kong