alder

alder - noun

wood of any of various alder trees; resistant to underwater rot; used for bridges etc

north temperate shrubs or trees having toothed leaves and conelike fruit; bark is used in tanning and dyeing and the wood is rot-resistant

alder - thesaurus

Scrabble score = 6

"I love your course..... you explain so much that I didn't know, forgot, or wasn't taught."

Adult student, USA