Change key (5)

I believe the answer is:

shift

I believe this is a double definition.

'change' is the first definition.
(shifting is a kind of changing)

'key' is the second definition.
(key on a computer keyboard)

(Other definitions for shift that I've seen before include "Change position" , "Change location" , "Move; work period" , "Move (fast!)" , "Move; loose dress" .)

I've seen this clue in The Telegraph.

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