What is the meaning of oblige?

verb

• Force somebody to do something.
  • usage: "We compel all students to fill out this form"
  • synonyms: compel, obligate
• Bind by an obligation; cause to be indebted.
  • usage: "He's held by a contract"; "I'll hold you by your promise"
  • synonyms: bind, hold, obligate
• Provide a service or favor for someone.
  • usage: "We had to oblige him"
  • synonyms: accommodate