yāo
youngest
most junior
tiny
one (unambiguous spoken form when spelling out numbers, esp. on telephone or in military)
one or ace on dice or dominoes
variant of 吆[yao1], to shout
duì yāo
pair of aces (in dominoes)
double one
yāo èr
one-two or ace-deuce (smallest throw at dice)
a prostitute
yāo bìng shǐ
idemfactor (expressing a vector as sum of its three orthogonal projections)