What is the meaning of Arranger?

One who arranges.

Digital keyboard to play music with accompaniment styles.

to arrange

to suit, to be convenient

to be set for

to be pleasant (towards someone); to get along (with someone)

to repair, to fix, to mend

to adjust

to arrange, set up, to organize

to prepare, to fix (a meal); to make (a bed)

to suit, to please, to satisfy

to castrate, to spay (an animal)

(Can we verify this sense?) to build

to get (oneself) ready, to get fixed up, to prepare oneself

to come to terms (with one another)

to clear up, to dissipate

imperative of arrangere

Source: wiktionary.org