# Number Sign
U+0023
#
ℹ️ About
The Number Sign (#), commonly referred to as a hash, pound sign, or octothorpe, is a versatile character used globally. In programming, it often denotes comments (Python, Ruby) or preprocessor directives (C, C++). In modern web culture, it functions as the “hashtag” prefix for metadata tagging on social media platforms.
⚠️ Note: Do not confuse with ♯ (Music Sharp Sign U+266F) or ⌗ (Viewdata Square U+2317).
⚡ Codes
HTML
#
CSS
\0023
Python
\u0023
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