The term 'Closed Tightly' can be described by three words: Sealed, SHUT, and Clenched. Sealed is a 6-letter word meaning to close or fasten securely with or as if with a seal. SHUT is a 4-letter word meaning to move (something) so that it covers an opening. Clenched is an 8-letter word meaning to hold or grip (something) tightly with the hand or the teeth. All three words describe the action of closing something tightly, making sure it is secure and not able to be opened.