function as (something)

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Related to functioning as: adaptive functioning, social functioning

function as (something)

To have a particular purpose or fill a certain role. Mrs. Smith will function as your homeroom teacher for the rest of the year now that Mrs. Jones is on maternity leave.
See also: function

function as

v.
To serve a purpose or play a role similar to that of something else: The beaks of some wading birds function as spears for catching fish.
See also: function