without a companion

बिना साथी

English Usage: She felt lonely and companionless in the new city.

Hindi Usage: नई शहर में वह अकेली और साथीहीन महसूस कर रही थी।

someone who accompanies or is closely associated with another

a person with whom one shares a relationship, typically of friendship or companionship

मित्र

English Usage: He had no companion in his travels.

Hindi Usage: उसकी यात्रा में कोई मित्र नहीं था।