improver

Mane (Îngilîzî)

1. Something that, or someone who, improves something.
2. (obsolete) Specifically, a person who improves land or property, a landscaper.
3. One who improves his or her performance, one who shows improvement (of individuals or groups).
4. A substance added to cause improvement (especially to a foodstuff).
5. (historical) A pad worn by women to make the dress hang properly.

Hevwate

add-on

addition

do-gooder

humanitarian

probationer

person undergoing practical training

increase

melioration

mender

peripheral device

land-reclamation

attachment

reformer

growth

ameliorator

Werger

adjonction

bienfaiteur

إِضافة

Erhöhung

Gehaltserhöhung

Steigerung

Zuwachs

Zunahme

Anhebung

προσθήκη

αύξηση

βελτιώτης

βελτιωτής

addition

humanitari

Wekî (IPA) tê bilêvkirin

/ɪmˈpɹuːvɚ/

Etîmolojî (Îngilîzî)

From improve + -er.