Other cultures and languages don’t say heads or tails in a coin toss. In most Spanish languages, they say “cara o cruz”, head or cross. Mexico says eagle or sun. Costa Rica is shield or crown. Lion or line is Persian. Japanese is front or back, but really prefer rock, paper, scissors. Crown or shackle in Seweden and Finland. Head or coin in Dutch. Israel says tree or Palestine.

Head, cross, crown, number, reverse, eagle are all common words used.

Australia throws two pennies into the air and call it Two-up.