How to pronounce 洪武 in Cantonese (3 out of 4):

牌匾最早的為明朝洪武三年(公元1370年)
The earliest known use of the name was in 1370 AD during the Ming Dynasty.

Cantonese Sentence Breakdown

牌匾 paai4 bin2
plaque
最早 zeoi3 zou2
earliest
dik1
of
~'s (possessive particle)
(used after an attribute)
(used to form a nominal expression)
(used at the end of a declarative sentence for emphasis)
truly
really
indeed
target
to lift up
few
small
to fetch
to move
to get
to pick up
to force
wai6
because of
for
on account of
on behalf of
by (in the passive voice)
明朝 ming4 ciu4
Ming Dynasty
洪武 hung1 mou5
Hongwu (era of Ming Dynasty)
三年 saam1 nin4
three years
公元 gung1 jyun4
AD
nin4
year