Online Google Dictionary

behalf 中文解釋 wordnet sense Collocation Usage Collins Definition
  1. as the agent of or on someone's part (usually expressed as "on behalf of" rather than "in behalf of"); "the guardian signed the contract on behalf of the minor child"; "this letter is written on behalf of my client";
  2. Advantage; favor; stead; benefit; interest; profit; support; defense; vindication
  3. (preposition) For. For example: 'He thanked the guests for coming on my behalf as I had to leave early and couldn’t talk to everyone.'
  4. In someone's good interest.