What idioms are there to describe single dog?

Are you alone? [jirán yüshn]

Me: alone. Lonely, single people.

Upright? [Qing Qing Jiélì]

One person. Describe a person who is helpless and lonely.

Are you alone? [xíng dān yǐng zh]

Appearance: body; Only: one person. Only your own body and your own shadow. Describe loneliness, no company.

Go alone? [J ǔ J ǔ Du Xing]

Wandering: loneliness. Walk alone. Describe being very lonely.

Homeless? [ wú jiā wú shì ]

Refers to a person who has no wife or children.