It is actually a Latin Phrase...
In whole it reads:
"In hoc signo vinces".
It is a motto meaning "In this sign you will conquer." And is the motto of the Knights Templar, top of the York Rite of...
Ad hoc.
It is Latin meaning 'for a purpose or end'. It is a term applied for denoting something that exists for an specific purpose only. In organizational science and law, it usually refers to a...
IN HOC SIGNO VINCES is pronounced (in Classical Latin):
in hawk sig-noh win-kace.
The "g" in signo is (like all g's in Classical Latin) pronounced hard like in gate, get or gas.
R.H. Ralls