A connector for determining whether or not to having been disengaged from the mating connector 2 to be exploded includes a housing including a main body accommodating a terminal fitting, and a pair of projections projecting from the main body; a lever including a pair of plates provided with holes through which each of the pair of projections is passed, and the pair of plates sandwiching the main body therewithin, the lever being arranged rotatively about the pair of projections. The lever includes a label-attached part to which a label is attached, the label-attached part is provided with a plate part coupling the pair of plates to each other, the plate part has a slit open to the hole, extending toward the plate-coupling part, and the label is attached to the label-attached part so as to cover the slit.