adverb, adverb taking the 'to' particle
remarkably; rapidly; by leaps and bounds
Describes noticeable, often rapid improvement or progress, typically in skill or ability.
彼は練習を始めてからメキメキ上達した。
He improved remarkably after he started practicing.
The new employee is rapidly gaining skills.
adverb, adverb taking the 'to' particle
creaking; cracking sound
Mimetic use for the sound of something straining, creaking, or breaking under pressure. Less common than the progress sense.
The old floorboards made a creaking sound.
He improved remarkably fast at tennis.
The old tree branch creaked and then snapped.
The new employee's abilities are growing by leaps and bounds.