Definitions
1.SymbolThe cardinal number one, a single thing or unit.
2.SymbolA digit in decimal and every other base numbering system, including binary, octal, and hexadecimal."15 × 134 = 2010; 0010 00112 (the number 35 in binary notation); 0x1000E001 (the number 268492801 in hexadecimal notation)"
3.SymbolThe identity element with respect to multiplication in a ring."a×1 = a"
4.SymbolBit state corresponding to binary digit 1, or on or true.
5.SymbolA Boolean or truth value corresponding to true."f : B → B : B = {0, 1}"
6.SymbolThe one-point topological space, trivial ring, trivial group, a category with a single object or a (canonical) singleton.
7.SymbolJanuary.
8.Symbolthe pitch of a tone, either high or low depending on local convention; '1' is most commonly the highest or lowest pitch (but see 0)
9.Symboltone number 1, typically identified with dark level yin ping (陰平). May simply be level ping tone (平) if the yin–yang distinction is not made.
10.Symbolaccent 1 in Norwegian, Swedish and Limburgish."Norwegian/Swedish toneme 1 is sometimes transcribed with a simple primary stress mark, that is ˈ."
11.SymbolFirst person.
12.LetterAlternative form of Ӏ/ӏ (Cyrillic letter palochka)
13.Symbol(Should we delete this sense?) Deliberate misspelling of !, imitating someone who is too excited to consistently press the shift key while typing exclamation marks."A: someone hlep me pls im always losing!!!1! B: Thats bcuz ur st00pid!!!!!11!!oneone!!1!!eleven!1"
14.SymbolAbbreviation of one-shot or one-shotted.
15.NounClipping of 180 (“180° spin”).