instep

in·step

I0169700 (ĭn′stĕp′)n.1. The arched middle part of the human foot between the toes and the ankle.2. The part of a shoe or stocking covering the instep.

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[Middle English.]

instep

(ˈɪnˌstɛp) n1. (Anatomy) the middle section of the human foot, forming the arch between the ankle and toes2. (Clothing & Fashion) the part of a shoe, stocking, etc, covering this[C16: probably from in-² + step]

in•step

(ˈɪnˌstɛp)

n. 1. the arched upper surface of the human foot between the toes and the ankle. 2. the part of a shoe, stocking, etc., covering this surface. 3. the front of the hind leg of a horse, cow, etc., between the hock and the pastern joint; cannon. [1520–30]

Thesaurus

Noun	1.	instep - the arch of the foot foot, human foot, pes - the part of the leg of a human being below the ankle joint; "his bare feet projected from his trousers"; "armored from head to foot"arch - a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)fallen arch, sunken arch - an instep flattened so the entire sole rests on the ground
	2.	instep - the part of a shoe or stocking that covers the arch of the footboot - footwear that covers the whole foot and lower legcovering - an artifact that covers something else (usually to protect or shelter or conceal it)shoe - footwear shaped to fit the foot (below the ankle) with a flexible upper of leather or plastic and a sole and heel of heavier materialstocking - close-fitting hosiery to cover the foot and leg; come in matched pairs (usually used in the plural)

Translations

脚背

instep

(ˈinstep) noun the arched upper part of the foot. The strap of that shoe is too tight across the instep. 腳背 脚背