Semantics

Левый ботинок жмёт в подъёме. The left boot pinches my instep.
This entry is concerned with the use of the word подъём to refer to the top part of a human foot. The word подъём is also used to refer to the corresponding part of a boot or shoe, as in ботинки с низким подъёмом "boots with a low instep," a usage not described in this entry. Other meanings, such as "raising" (подъём флага "raising the flag"), "increase" (промышленный подъём "increase in industrial output"), enthusiasm (он испытывал подъём "he felt enthusiastic"), etc., are likewise not described in this dictionary.