

The knife has a keen edge.
Sharp or finely honed; able to cut or pierce easily.
She used a keen blade to slice the bread.
The keen tip of the arrow flew straight and true.
His keen sense of observation helped him solve the mystery.
keen edge
keen knife
keen blade
sharp
acute
razor-sharp
She is keen on learning new languages.
Having a strong interest or enthusiasm for something.
He is keen to start his new job.
They are keen on playing soccer every weekend.
I am keen about cooking new recipes.
keen interest
keen enthusiasm
keen desire
eager
enthusiastic
interested
They keened for their lost friend.
To wail or lament loudly, often in grief.
She keened for her childhood pet.
The family keened during the funeral.
Friends gathered to keen for the departed.
keen for someone
keen in sorrow
keen with grief
wail
lament
mourn
He has a keen mind for solving puzzles.
Very perceptive or quick to understand.
She has a keen sense of direction.
His keen observations helped the team succeed.
The detective was keen to find the truth.
keen interest
keen insight
keen awareness
sharp
acute
perceptive