companion

US /kəmˈpæn.jən/

UK /kəmˈpæn.jən/

1.

a person or animal with whom one spends a lot of time or with whom one travels

:

•

She found a loyal companion in her dog.

•

He was a pleasant travel companion.

:

associate chum comrade confidant escort friend mate pal partner

2.

a handbook or guide

:

•

This book is an excellent companion to the exhibition.

•

The software comes with a comprehensive user companion.

:

guide handbook manual reference