uacgr &uacgr; Uacgr &Uacgr; uacute ú Uacute Ú uarr ↑ uArr ⇑ Uarr ↟ uarr2 &uarr2; Uarrocir ⥉ ubrcy ў Ubrcy Ў ubreve ŭ Ubreve Ŭ ucirc û Ucirc Û ucy у Ucy У udarr ⇅ udblac ű Udblac Ű udhar ⥮ udiagr &udiagr; udigr &udigr; Udigr &Udigr; ufisht ⥾ ufr 𝔲 Ufr 𝔘 ugr &ugr; Ugr &Ugr; ugrave ù Ugrave Ù uHar ⥣ uharl ↿ uharr ↾ uhblk ▀ ulcorn ⌜ ulcorner ⌜ ulcrop ⌏ ultri ◸ umacr ū Umacr Ū uml ¨ UnderBar _ UnderBrace ⏟ UnderBracket ⎵ UnderParenthesis ⏝ Union ⋃ UnionPlus ⊎ uogon ų Uogon Ų uopf 𝕦 Uopf 𝕌 uparrow ↑ Uparrow ⇑ UpArrow ↑ UpArrowBar ⤒ UpArrowDownArrow ⇅ updownarrow ↕ Updownarrow ⇕ UpDownArrow ↕ UpEquilibrium ⥮ upharpoonleft ↿ upharpoonright ↾ uplus ⊎ UpperLeftArrow ↖ UpperRightArrow ↗ upsi υ Upsi ϒ Upsih &Upsih; upsilon υ Upsilon Υ Upsilon Υ UpTee ⊥ UpTeeArrow ↥ upuparrows ⇈ urcorn ⌝ urcorner ⌝ urcrop ⌎ uring ů Uring Ů urtri ◹ uscr 𝓊 Uscr 𝒰 utdot ⋰ utilde ũ Utilde Ũ utri ▵ utrif ▴ uuarr ⇈ uuml ü Uuml Ü uwangle ⦧