cetacean /si-tāˈshi-ən or -shən/

(a member) of the order Cetacea of aquatic mammals having streamlined fish-like form, including the toothed whales, or Odontoceti (sperm whales, bottle-noses, dolphins, etc) and the baleen whales, or Mystacoceti (right whale, hump-backs, rorquals)

• checkers
• check in
• check-in
• checking
• checking account
• checking accounts
• checking-room
• check-key
• check-keys
• checklaton
• checklatons
• checklist
• checklists
• checkmate
• checkmated
• checkmates
• checkmating
• check off
• check-off
• check out
• check-out
• checkout
• checkouts
• checkpoint
• checkpoints