UNIQUE WORDS game to increase our vocabulary - alphabetical order

Undulate - move or go with a smooth up-and-down motion

Washer - a small flat ring made of metal, rubber, or plastic fixed under a nut or the head of a bolt to spread the pressure when tightened or between two joining surfaces as a spacer or seal

Yak: a large, stocky, shaggy-haired wild ox of the Tibetan highlands, having long, curved horns; endangered

Apropos - with reference to; concerning.

Contemptuous: Manifesting or feeling contempt; scornful 

Ennui- The feeling of listlessness, lack of motivation and unhappiness.

Guttersnipe: astreet urchin;

a person of the lowest class

Illeism - A person talking about themselves in the third person.

Eg-"Dobby has no master. Dobby is a free elf! "-Dobby

Jackstall - an aeronautical condition and occurs when the blades overpower the hydraulic servos - the jacks stall - and the controls lock solid.

If you're training in a Robinson that may not mean much because it doesn't have hydraulic controls.