Hash, hashes, hash mark, or hashing may refer to:
Substances
- Hash (food), a coarse mixture of ingredients
- Hash, a nickname for hashish, a cannabis product
Hash mark
- Hash mark (sports), a marking on hockey rinks and gridiron football fields
- Hatch mark, a form of mathematical notation
- Number sign (#), also known as the hash, hash mark, or (in American English) pound sign
- Service stripe, a military and paramilitary decoration
- Tally mark, a counting notation
Computing
- Hash function, an encoding of data into a small, fixed size; used in hash tables and cryptography
- Hash table, a data structure using hash functions
- Cryptographic hash function, a hash function used to authenticate message integrity
- URI fragment, in computer hypertext, a string of characters that refers to a subordinate resource
- Geohash, a spatial data structure which subdivides space into buckets of grid shape
- Hashtag, a form of metadata often used on social networking websites
- hash (Unix), an operating system command
- Hash chain, a method of producing many one-time keys from a single key or password
- Password hash
- Zobrist hashing, a method of hashing chess positions into a key
Other uses
- Hash House Harriers, a running club
- Hash (EP) ([#]), a 2020 EP by Loona
See also
- Hash browns
- Hash House (disambiguation)
- All pages with titles beginning with Hash
- All pages with titles containing Hash