| Xi | the 14th letter of the Greek alphabet |
|---|---|
| Xi | being one more than ten |
| Xi | the cardinal number that is the sum of ten and one |
| Xi | a city of central China |
| Xi | the cardinal number that is the sum of eleven and one |
| Xi | denoting a quantity consisting of 12 items or units |
| Xi | the cardinal number that is the sum of twelve and one |
| Xi | being one more than twelve |
| Xi | coarse grayish green annual yellow-flowered herb |
| Xi | type genus of the Xiphiidae |
| Xi | large toothless marine food fish with a long swordlike upper jaw |
| Xi | comprising the common swordfishes |