| SEC | a member of Christian denomination that expects the imminent advent of Christ |
|---|---|
| SEC | rearmost or uppermost area in the balcony containing the least expensive seats |
| SEC | the fielding position of the player on a baseball team who is stationed near 2nd base |
| SEC | the base that must be touched second by a base runner in baseball |
| SEC | (baseball or softball) the person who plays second base |
| SEC | battle in World War I (1915) |
| SEC | the competitor who finishes second |
| SEC | mental infirmity as a consequence of old age |
| SEC | accommodations on a ship or train or plane that are less expensive than first class accommodations |
| SEC | not the highest rank in a classification |
| SEC | not the highest rank in a classification |
| SEC | by second class conveyance |