-<Multi_key> <m> <6> : "∠" U2220 # angle symbol
-<Multi_key> <m> <ampersand> : "∧" U2227 # logical and
-<Multi_key> <m> <8> : "⊗" U2297 # circled times
-<Multi_key> <m> <asterisk> : "⊙" U2299 # circled dot operator
-<Multi_key> <m> <9> : "∟" U221F # right angle
-<Multi_key> <m> <0> : "∡" U2221 # measured angle
+<Multi_key> <m> <2> : "∶" U2236 # ratio symbol
+<Multi_key> <m> <4> : "∷" U2237 # proportion sign
+<Multi_key> <m> <6> : "∠" U2220 # angle symbol
+<Multi_key> <m> <9> : "∟" U221F # right angle
+<Multi_key> <m> <0> : "∡" U2221 # measured angle