Related Clues:

• Kick in
• Word on a dipstick
• Make a gift of
• Use a calculator
• Do arithmetic
• Put into the mix
• Put in with the rest
• Say more
• Put 2 and 2 together
• Present to Goodwill, e.g.
• Lengthen (with "to")
• Ancient pyramid builders
• Word found on a dipstick
• Also say
• Cookbook verb