1. Jam a single frequency

Type of: block, jam

• tree lupine
• tree mallow
• tree martin
• tree of heaven
• tree of knowledge
• tree of the gods
• tree onion
• tree poppy
• tree ring
• tree shrew
• tree sloth
• tree sparrow
• tree squirrel
• tree stump
• tree surgeon
• tree surgery
• tree swallow
• tree swift
• tree toad
• tree tobacco
• tree tomato
• tree trunk
• tree wallaby
• tree-frog
• tree-living