Definitions:

1. A characteristic or distinguishing mark that identifies something or someone. NOUN
   • His punctuality is the earmark of a reliable employee.
2. To designate or set aside funds, resources, or something specific for a particular purpose or project. VERB
   • The government has earmarked funds for improving public transportation.

Synonyms:

• allocate
• allot
• dedicate
• Devote
• reserve
• Save
• set aside