Alder: Modify
Apple: A romantic acquaintance when successfully initiated
Ash: Psychoactive drug, illegal in many jurisdictions
Aspen: Said of one possessing writing implement
Beech: Area between sea and land
Birch: Place where birds alight
Chestnut: Not, just not
Cypress: Device for making cider from apples
Elm: Part of water vessel's steerage
Fir: Distant
Holly: Totally
Maple: Possibility of striking up romantic acquaintance
Pear: A couple
Pine: Savoury pudding having some accompaniment; as in 'Pine mash'
Plane: Amusing oneself in a light-hearted way
Poplar: Liked by many
Rowan: Way of propelling water vessels
Walnut: Stubborn refusal
Willow: Future debt
Yew: Second person
20 daft definitions from the forest
Alder: Modify
Apple: A romantic acquaintance when successfully initiated
Ash: Psychoactive drug, illegal in many jurisdictions
Aspen: Said of one possessing writing implement
Beech: Area between sea and land
Birch: Place where birds alight
Chestnut: Not, just not
Cypress: Device for making cider from apples
Elm: Part of water vessel's steerage
Fir: Distant
Holly: Totally
Maple: Possibility of striking up romantic acquaintance
Pear: A couple
Pine: Savoury pudding having some accompaniment; as in 'Pine mash'
Plane: Amusing oneself in a light-hearted way
Poplar: Liked by many
Rowan: Way of propelling water vessels
Walnut: Stubborn refusal
Willow: Future debt
Yew: Second person