1. Smoking not permitted
   - nonsmoking, non-smoking

Encyclopedia: No smoking

• true heath
• true jasmine
• true laurel
• true lobster
• true lover's knot
• true mahogany
• true marmoset
• true north
• true pepper
• true pine
• true puffball
• true rib
• true sago palm
• true sandalwood
• true seal
• true senna
• true slime mold
• true slime mould
• true sparrow
• true statement
• true to
• true to life
• true toad
• true tulipwood
• true up