introduct

As an acronym put

is (software|testing).

As an initialism put

is (electronics).

As a verb introduct is

(obsolete) to instruct.

As a noun insert

is a key that when pressed switches between the overtype mode and the insert mode of a computer.

As a verb introduct is

(obsolete) to instruct.

As a verb introduct

is to instruct.

As an adjective intraduct is

within a duct.

As verbs the difference between introduce and introduct

is that introduce is to cause (someone) to be acquainted (with someone else) while introduct is to instruct.

As verbs the difference between instruct and introduct

is that instruct is (label) to teach by giving instructions while introduct is (obsolete) to instruct.

As a noun instruct

is (label) instruction.

As an adjective instruct

is (label) arranged; furnished; provided.