Search and compare thousands of words and phrases in American Sign Language (ASL). The largest collection online.
How to sign: the act of improving something
"their improvements increased the value of the property";
Categories: change of state
Within this category: amelioration, cleaning, clearing, correction, development, enhancement, enrichment, humanization, modernization, optimization, perfection, reform, renovation, repair, self-improvement, stabilization, tenderization, upgrade, upturn, ventilation