1. a person who is overly eager or enthusiastic, especially in academic or work settings
Usage: informal; sometimes derogatory
2. a person who wails or mourns loudly at funerals
Usage: archaic; Irish

1. comparative form of keen; more eager, enthusiastic, or intense

Examples

• She was keener than her classmates to participate in the debate.
• His keener sense of smell helped him detect the gas leak.
• Don’t be such a keener – you don’t have to answer every question.
• The teacher’s pet was known as the class keener.
• He had a keener interest in science after visiting the museum.
• The keener students stayed after class to ask questions.
• Her keener awareness of detail made her an excellent editor.