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

Derived forms: singletrees

• horror film
• horror movie
• horror-stricken
• horror-struck
• hors d'oeuvre
• hors de combat
• horse
• horse around
• horse balm
• horse barn
• horse blanket
• horse botfly
• horse breeding
• horse brier
• horse cassia
• horse cavalry
• horse chestnut
• horse doctor
• horse fancier
• horse gentian
• horse grain
• horse gram
• horse latitude
• horse mackerel
• horse manure