Meaning: To make or become better.
Meaning: Improve upon; to become or make better and better.
Pronunciation: multiple movements (pluralization).
Meaning: Improve enormously; improvement in a big leap.
Related signs: BETTER, AMELIORATE, UPGRADE, ENHANCE.
First 100 words.
As you feel more comfortable with the first few hundreds of ASL signs, progress further with your vocabulary and learn signing more.