Memrise
Hello, here are some words I learnt on Memrise =) :
Bemoan = complain about, grump about.
Coalesce = amalgamate, combine.
Debilitiate = vitiate, undermine.
Posit = postulate, suggest, propose, put forward.
Fatuous = preposterous
Soporific = causing to become tired or sleep.
Have a good day!