| CER | certain to occur |
|---|---|
| CER | definite but not specified or identified |
| CER | capable of being depended on |
| CER | established irrevocably |
| CER | definitely or positively |
| CER | something that is certain |
| CER | the state of being certain |
| CER | type genus of the Certhiidae |
| CER | common American brown creeper with down-curved bill |
| CER | common European brown-and-buff tree creeper with down-curved bill |
| CER | creepers |
| CER | capable of being guaranteed or certified |