EDIT Pronounced Kah with no combining glyph
when Combined with U+1712 it sounds like the English word \"key\"
other combining forms are K, Ku and Ko.
Ref. How to Write the Ancient Script of the Philippines by Paul Morrow
 
ADD NEWSIMILAR CHARACTERS
 < CHARACTER >  BLOCK PROPERTIES
U+1703 TAGALOG LETTER KA
DEUTSCH : ENGLISH