The difference between Hashtag and Octothorpe

When used as nouns, hashtag means a metadata tag, signaled by a preceding hash sign (#), used to label content, whereas octothorpe means the hash or square symbol (), used mainly in telephony and computing.


Hashtag is also verb with the meaning: to label (a message) with a hashtag.

check bellow for the other definitions of Hashtag and Octothorpe

  1. Hashtag as a noun (Internet):

    A metadata tag, signaled by a preceding hash sign (#), used to label content.

  2. Hashtag as a noun (internet, informal):

    The hash sign itself.

  1. Hashtag as a verb (transitive, Internet):

    To label (a message) with a hashtag.

  1. Octothorpe as a noun (chiefly, US, typography):

    The hash or square symbol (), used mainly in telephony and computing.