WordWeb Online

1. Some conspicuous object used to distinguish or mark something
   "the buoys were markers for the channel"
    
2. A distinguishing symbol
   - marking, mark
    
3. A writing implement for making a mark
    
4. [N. Amer] A promise to pay a specified amount on demand or at a certain time
   - note, promissory note, note of hand
    
5. Someone who marks an examination, or scores a game or competition

Derived forms: markers

Type of: artefact [Brit], artifact [N. Amer], certificate of indebtedness, debt instrument, obligation, symbol, writing implement

Encyclopedia: Marker Marker, Norway