• Fill in: Fill; to replace material that is absent or has been removed
• Fill in: Inform somebody, especially to supply someone missing or missed information
• Fill in: Substitute for somebody or something
• Fill in: Beat up; to physically assault
• Fill out: Complete a form or questionnaire with requested information
• Fill out: Have one,s physique expand with maturity or with surplus weight
• Fill up: Fill the tank of a vehicle with fuel
• Fill up: Annoy, or displease, by taunting, or by excessive nagging
• Fill up: Satisfy someone’s hunger