A connector mateable with a mating connector along an up-down direction, wherein: the mating connector has a mating housing and a plurality of mating terminals; the mating terminals are held by the mating housing; the connector is mounted on an object when used; the connector comprises a housing and a plurality of terminals; the housing has a receiving portion and terminal accommodation portions; the receiving portion receives a part of the mating housing when the connector is mated with the mating connector; each of the terminal accommodation portions communicates with the receiving portion; the terminal accommodation portions partially accommodate the terminals, respectively; the terminals are held by the housing; each of the terminals has a fixed portion, a held portion, a first spring portion and a second spring portion; the fixed portion is fixed on the object when the connector is used; the held portion is held by the housing; the first spring portion extends from the held portion; the first spring portion has a first turn portion and a first coupling portion; the first turn portion extends at least upward or in a first predetermined orientation from the held portion and then extends downward; the first predetermined orientation is along a predetermined direction perpendicular to the up-down direction; the first coupling portion extends downward from the first turn portion; the second spring portion extends from the first spring portion; the second spring portion has a second turn portion, a second coupling portion, an upper contact point and a recessed portion; the second turn portion is coupled with the first turn portion by the first coupling portion; the second turn portion is positioned below the first turn portion in the up-down direction; the second coupling portion extends upward from the second turn portion; the upper contact point is coupled with the second turn portion by the second coupling portion; the upper contact point is positioned in the receiving portion; the upper contact point faces in the first predetermined orientation; the second turn portion has a lower contact point; the lower contact point is positioned in the receiving portion; the lower contact point faces in the first predetermined orientation; in the predetermined direction, the recessed portion is recessed in a second predetermined orientation opposite to the first predetermined orientation; and the recessed portion is positioned between the upper contact point and the lower contact point in the up-down direction, characterized in that in the predetermined direction, a distance between the upper contact point and the terminal accommodation portion is greater than a distance between the lower contact point and the terminal accommodation portion. the mating connector has a mating housing and a plurality of mating terminals; the mating terminals are held by the mating housing; the connector is mounted on an object when used; the connector comprises a housing and a plurality of terminals; the housing has a receiving portion and terminal accommodation portions; the receiving portion receives a part of the mating housing when the connector is mated with the mating connector; each of the terminal accommodation portions communicates with the receiving portion; the terminal accommodation portions partially accommodate the terminals, respectively; the terminals are held by the housing; each of the terminals has a fixed portion, a held portion, a first spring portion and a second spring portion; the fixed portion is fixed on the object when the connector is used; the held portion is held by the housing; the first spring portion extends from the held portion; the first spring portion has a first turn portion and a first coupling portion; the first turn portion extends at least upward or in a first predetermined orientation from the held portion and then extends downward; the first predetermined orientation is along a predetermined direction perpendicular to the up-down direction; the first coupling portion extends downward from the first turn portion; the second spring portion extends from the first spring portion; the second spring portion has a second turn portion, a second coupling portion, an upper contact point and a recessed portion; the second turn portion is coupled with the first turn portion by the first coupling portion; the second turn portion is positioned below the first turn portion in the up-down direction; the second coupling portion extends upward from the second turn portion; the upper contact point is coupled with the second turn portion by the second coupling portion; the upper contact point is positioned in the receiving portion; the upper contact point faces in the first predetermined orientation; the second turn portion has a lower contact point; the lower contact point is positioned in the receiving portion; the lower contact point faces in the first predetermined orientation; in the predetermined direction, the recessed portion is recessed in a second predetermined orientation opposite to the first predetermined orientation; and the recessed portion is positioned between the upper contact point and the lower contact point in the up-down direction, characterized in that in the predetermined direction, a distance between the upper contact point and the terminal accommodation portion is greater than a distance between the lower contact point and the terminal accommodation portion.