We found 8 dictionaries that define the word be at pains:

General (7 matching dictionaries)

1. be at pains: Merriam-Webster
2. be at pains: Vocabulary.com
3. be at pains: Dictionary.com
4. be at pains: Rhymezone
5. be at pains: FreeDictionary.org
6. be at pains: Mnemonic Dictionary
7. be at pains: TheFreeDictionary.com

Miscellaneous (1 matching dictionary)

8. be at pains: Idioms

Definitions from WordNet (be at pains) ▸ verb:  try very hard to do something Types: be concerned, be worried, be anxious, be troubled, more... ▸ Words similar to be at pains ▸ Usage examples for be at pains ▸ Idioms related to be at pains ▸ Wikipedia articles (New!) ▸ Words that often appear near be at pains ▸ Rhymes of be at pains ▸ Invented words related to be at pains