Naval/Maritime Signal Flag Codes

Zero ZEE-roh Numeral zero. None.
Pennant one PEN-ant WUN Pennant one. Numeral one.
Pennant two PEN-ant TOO Pennant two. Numeral two.
Pennant three PEN-ant TREE Pennant three. Numeral three.
Pennant four PEN-ant FOW-er Pennant four. Numeral four.

Pennant five PEN-ant FIFE Pennant five. Numeral five.
Pennant six PEN-ant SICKS Pennant six. Numeral six.
Pennant seven PEN-ant SEV-en Pennant seven. Numeral seven.
Pennant eight PEN-ant AIT Pennant eight. Numeral eight
Pennant Nine PEN-ant NIN-er Pennant nine. Numeral nine

Pennant zero PEN-ant ZEE-roh Pennant zero. Numeral zero