Definitions:

1. Describes a person, especially a child, who is homeless, abandoned, or neglected. NOUN
   • The young waif wandered the streets, looking lost and alone.
2. Refers to an unsupported or neglected individual ignored by society. NOUN
   • He took pity of the waif sitting outside the bakery, offering him food and a warm coat.
3. Refers to someone who appears thin, frail, or vulnerable. NOUN
   • The artist was inspired by the fragile appearance of a waif-like figure in the marketplace.

Synonyms:

• derelict
• orphan
• outcast
• ragamuffin
• street child
• urchin
• vagabond