To leave someone waiting in anticipation of one's response.

Third-person singular simple present indicative form of leave someone hanging

A species of cherry native to California, Prunus ilicifolia.

Don't touch a plant with a cluster of three leaves because it might be poison ivy or poison oak.

(military) Failing to return from leave or liberty on time.

In the armed forces, being absent from one's post without prior authorization.

The military offense of not being present when expected without proper authority.

(business, Australia, New Zealand) An additional employee vacation payable after long periods of service with an employer.

The plant Crataegus marshallii.

(Internet) To read someone's message or messages and not give any response, particularly on an instant messaging application where a user can see whether or not their interlocutor has read their message.