Normal

師範 /师范

shīfàn

(pertaining to a school to teach teachers how to teach)

常態 /常态

chángtài

(according to norms or rules)

正常

zhèngcháng

(according to norms or rules)

正常

zhèngcháng

(usual, ordinary)

通常

tōngcháng

(according to norms or rules)

法線 /法线

fǎxiàn

(mathematics: a line perpendicular to another)