A connector 10 is provided with a connector housing 11 formed with a first cavity 16 extending in a front-rear direction, a first terminal 12 accommodated in the first cavity 16, a front mask 13 to be attached to a front end part of the connector housing 11, and a lid member 14 to be mounted on an upper surface of the connector housing 11. The front mask 13 is attached to the connector housing 11 from above. The lid member 14 at least partially covers an upper surface of the front mask 13. The front mask 13 includes a front cavity 35 extending in the front-rear direction. A front end part of the first terminal 12 is accommodated in the front cavity 35.