CONCAT

Concatenates one or more strings

CONCAT is an enhancement of CONCATENATE, as CONCAT also accepts ranges as arguments, like B2:E5, K:K or K:M. When ranges are used, the cells are traversed row by row (from top to bottom) to concatenate.

CONCAT( )

=CONCAT("Hello ", A1:C3) concatenates the string "Hello" with all strings in range A1:C3.

COM.MICROSOFT.CONCAT

CONCAT wiki page.

CONCATENATE