DN, dN, or dn may refer to:
==Science, technology, and mathematics== ===Computing and telecommunications=== Digital number, the discrete of an analog value sampled by an analog-to-digital converter Directory number in a phone system Distinguished Name, an identifier type in the LDAP protocol Domain name, an identification string used within the Internet Domain Nameserver DOS Navigator, a DOS file manager
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).