A connector is provided in which one or more cavities (21) into which one or more corresponding terminal fittings (10) are at least partly insertable in a connector housing (20) and one or more locking portions (28) are provided on inner side surfaces of the cavities (21) for resiliently locking the inserted terminal fittings (10), wherein the locking portions (28) are supported at the opposite ends thereof. Each locking portion (28) also serves as an outer wall (23) of the connector housing (20) or a partition wall (22) between adjacent cavities (21).
