形

to appear / to look / form / shape

"bristle" radical in Chinese characters (Kangxi radical 59)

to open / to start / to turn on / to boil / to write out (a prescription, check, invoice etc) / to operate (a vehicle) / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2] / abbr. for 開本|开本[kai1 ben3], book format

triangle

heptagon

heptagon

triangle

indeterminate form

scalene triangle

scalene triangle (math.)

irregular quadrilateral / trapezium

Z-shaped / zigzag

sexual dimorphism

U-turn