I-spy /īˈspīˈ/

1. A wordgame, in which one guesses objects in view, whose names begin with a certain letter of the alphabet
2. A children's game of hide-and-seek, so called from the cry when someone is spied

• tube wells
• tube worm
• tube worms
• tubfast
• tubfasts
• tubfish
• tubfishes
• tubful
• tubfuls
• tubicolar
• tubicole
• tubicoles
• tubicolous
• tubifex
• tubifexes
• tubiflorous
• tubiform
• Tubigrip
• tubing
• tubings
• tuboplasties
• tuboplasty
• tubs
• tub-thump
• tub-thumped