1. The pivoted or swinging bar to which the traces of a harnessed horse are fixed; a whiffletree

Derived forms: singletrees

• spiderly
• spiderwort
• spiderwort family
• spidery
• spiegel
• spiegel iron
• spiegeleisen
• spiel
• spiel off
• Spielberg
• Spielmeyer-Vogt disease
• spiff
• spiff up
• spiffed up
• spiffing
• spifflicate
• spiffy
• spiflicate
• spigot
• spik
• spike
• spike arrester
• spike heath
• spike heel
• spike lavender