Any one of numerous species of long-winged, migratory, orthopterous insects, of the family Acrididæ, allied to the grasshoppers; esp., (Edipoda, or Pachytylus, migratoria, and Acridium perigrinum, of Southern Europe, Asia, and Africa. In the United States the related species with similar habits are usually called grasshoppers. See Grasshopper.
- Any of numerous grasshoppers of the family Acrididae, often migrating in immense swarms that devour vegetation and crops.
- The seventeen-year locust.
- Any of several North American deciduous trees of the genus Robinia, especially R. pseudoacacia, having compound leaves, drooping clusters of fragrant white flowers, and durable hard wood.
- Any of several similar or related trees, such as the honey locust or the carob.
- The wood of one of these trees.