≠	not equal, ne, !=
≡	eq, identical to, menu, ===
∼	tilde, ~
≈	ca, ~~
≉	!ca, !~
≃	asymp, ~=
≄	!asymp, !~=
≪	Less, <<
≫	Greater, >>
⇐	Left, <=
⇒	Right, =>
⇏	!Right, =!=>
⇎	Left!Right, <=!=>
⇔	if and only if, Left-Right <=>
←	left, <-
→	right, ->
↔	left-right, <->
↮	left!right, <-!->
⇆	left+right
⇌	left/right
↑	up
↓	down
↕	up-down
⇵	up+down
↝	right-wave, ~>
↦	right-from, |->
↪	right-hook, '->
↺	counterclockwise
↻	clockwise, refresh, reload
↲	enter, newline, \n
↹	tab, \t
≥	greater-than-eqal, gte, >=
≤	lower-than-eqal, lte, <=
√	sqrt, root2
∛	root3
∜	root4
⊕	(+)
⊖	(-)
⊗	(x)
⊙	(.)
⊘	(/)
⊛	(*)
⊜	(=)
⊞	[+]
⊟	[-]
⊠	[x]
⊡	[.]
⊶	orig-of, O-0
⊷	image-of, 0-O
±	plus-minus, +-
∓	minus-plus, -+
¬	not, !
∧	and, ^
∨	or, v
⊻	xor
⊼	nand
⊽	nor
∪	union, u
⋃	Union, U
∩	intersection, n
⋂	Intersection
⊍	multiset-multi, u*
⊎	multiset-union, u+
∈	element, member, elem, €
∉	!element, !member, !elem, !€
∋	contains
∌	!contains
⊂	subset, c
⊄	!subset, !c
⊆	subset-eq, c=
⊈	!subset-eq, !c=
⊃	superset
⊅	!superset
⊇	superset-eq
⊉	!superset-eq
∃	exists, E
∄	!exists, !E
∀	for all, A
∂	partdiff, d
∎	end of proof, eop
∅	empty set, null
∞	infinity, inf, 8
∢	angle, winkel
∥	parallel, ||
∦	!parallel, !||
π	pi
∫	integral, S
∬	integral2, SS
Σ	sum, sigma
∏	Prod, Pi
⋅	mult, cdot, *
x	cross, prod, x
÷	div
∇	nabla, \/
∆	laplace, /\
…	ell, ...
⋯	mell, ...-
⋮	vell, ...|
⋱	dell, ...\
⋰	Dell, .../
ℕ	N, NN
ℂ	CC
ℚ	QQ
ℝ	RR
ℤ	ZZ
Ω	ohm, Omega

@̸	strike-at, /@
℃	degree-c, °C
℉	degree-f, °F
K	kelvin, K
℮	estimate, e
ℹ	info
‰	promille, %%

□	square                  	U+25A1
■	Square                  	U+25A0
△	3-up                    	U+25B3
▷	3-right                 	U+25B7
▽	3-down                  	U+25BD
◁	3-left                  	U+25C1
○	circle                  	U+25CB
●	Circle                  	U+25CF
◑	cirCLE                  	U+25D1
◐	CIRcle                  	U+25D0
☆	star                    	U+2606
★	Star                    	U+2605
☐	box, [_]                	U+2610
☑	box-check, [/]          	U+2611
☒	box-x, [X]              	U+2612
☕	coffee                  	U+2615
☜	hand-left               	U+261C
☞	hand-right              	U+261E
☠	death, skull            	U+2620
☢	radioactive             	U+2622
☣	biohazard               	U+2623
☤	medicine                	U+2624
☪	star-and-crescent       	U+262A
☭	hammer-and-sickle       	U+262D
☮	peace                   	U+262E
☯	yin-yang                	U+262F
☾	moon                    	U+263E
♲	recycle, trash          	U+2672
♻	Recycle, Trash          	U+267B
♿	wheelchair              	U+267F
⚓	anchor                  	U+2693
⚙	gear                    	U+2699
⚛	atom                    	U+269B
⚠	warning, !!!, /!\       	U+26A0
⚡	flash, voltage, /\/     	U+26A1
✈	airplane                	U+2708
✂	scissors, 8<            	U+2702
✉	envelope, mail, email   	U+2709
✗	crossmark, X, vote, fail	U+2717
✓	checkmark, V, tick, done	U+2713
❤	heart, <3               	U+2764
➤	>                       	U+27A4

roman numbers:
1 2 3 4 5 6 7 8 9 10 11 12 
Ⅰ Ⅱ Ⅲ Ⅳ Ⅴ Ⅵ Ⅶ Ⅷ Ⅸ  Ⅹ  Ⅺ  Ⅻ
ⅰ ⅱ ⅲ ⅳ ⅴ ⅵ ⅶ ⅷ ⅸ  ⅹ  ⅺ  ⅻ
50:   Ⅼ ⅼ     100: Ⅽ  ⅽ
500:  Ⅾ ⅾ    1000: Ⅿ  ⅿ

superscript:
0123456789+-=(ni): ⁰¹²³⁴⁵⁶⁷⁸⁹⁺⁻⁼⁽ⁿⁱ⁾

subscript:
0123456789+-=(nx): ₀₁₂₃₄₅₆₇₈₉₊₋₌₍ₙₓ₎

bold:    𝐚𝐛𝐜𝐝𝐞𝐟𝐠𝐡𝐢𝐣𝐤𝐥𝐦𝐧𝐨𝐩𝐪𝐫𝐬𝐭𝐮𝐯𝐰𝐱𝐲𝐳 𝐀𝐁𝐂𝐃𝐄𝐅𝐆𝐇𝐈𝐉𝐊𝐋𝐌𝐍𝐎𝐏𝐐𝐑𝐒𝐓𝐔𝐕𝐖𝐗𝐘𝐙 (roman-bold)
         𝗮𝗯𝗰𝗱𝗲𝗳𝗴𝗵𝗶𝗷𝗸𝗹𝗺𝗻𝗼𝗽𝗾𝗿𝘀𝘁𝘂𝘃𝘄𝘅𝘆𝘇 𝗔𝗕𝗖𝗗𝗘𝗙𝗚𝗛𝗜𝗝𝗞𝗟𝗠𝗡𝗢𝗣𝗤𝗥𝗦𝗧𝗨𝗩𝗪𝗫𝗬𝗭 (sans-bold)
         𝖆𝖇𝖈𝖉𝖊𝖋𝖌𝖍𝖎𝖏𝖐𝖑𝖒𝖓𝖔𝖕𝖖𝖗𝖘𝖙𝖚𝖛𝖜𝖝𝖞𝖟 𝕬𝕭𝕮𝕯𝕰𝕱𝕲𝕳𝕴𝕵𝕶𝕷𝕸𝕹𝕺𝕻𝕼𝕽𝕾𝕿𝖀𝖁𝖂𝖃𝖄𝖅 (fraktur-bold)
italic:  𝘢𝘣𝘤𝘥𝘦𝘧𝘨𝘩𝘪𝘫𝘬𝘭𝘮𝘯𝘰𝘱𝘲𝘳𝘴𝘵𝘶𝘷𝘸𝘹𝘺𝘻 𝘈𝘉𝘊𝘋𝘌𝘍𝘎𝘏𝘐𝘑𝘒𝘓𝘔𝘕𝘖𝘗𝘘𝘙𝘚𝘛𝘜𝘝𝘞𝘟𝘠𝘡 (sans-italic)
         𝒂𝒃𝒄𝒅𝒆𝒇𝒈𝒉𝒊𝒋𝒌𝒍𝒎𝒏𝒐𝒑𝒒𝒓𝒔𝒕𝒖𝒗𝒘𝒙𝒚𝒛 𝑨𝑩𝑪𝑫𝑬𝑭𝑮𝑯𝑰𝑱𝑲𝑳𝑴𝑵𝑶𝑷𝑸𝑹𝑺𝑻𝑼𝑽𝑾𝑿𝒀𝒁 (roman-bold-italic)
         𝙖𝙗𝙘𝙙𝙚𝙛𝙜𝙝𝙞𝙟𝙠𝙡𝙢𝙣𝙤𝙥𝙦𝙧𝙨𝙩𝙪𝙫𝙬𝙭𝙮𝙯 𝘼𝘽𝘾𝘿𝙀𝙁𝙂𝙃𝙄𝙅𝙆𝙇𝙈𝙉𝙊𝙋𝙌𝙍𝙎𝙏𝙐𝙑𝙒𝙓𝙔𝙕 (sans-bold-italic)
script:  𝓪𝓫𝓬𝓭𝓮𝓯𝓰𝓱𝓲𝓳𝓴𝓵𝓶𝓷𝓸𝓹𝓺𝓻𝓼𝓽𝓾𝓿𝔀𝔁𝔂𝔃 𝓐𝓑𝓒𝓓𝓔𝓕𝓖𝓗𝓘𝓙𝓚𝓛𝓜𝓝𝓞𝓟𝓠𝓡𝓢𝓣𝓤𝓥𝓦𝓧𝓨𝓩
double:  𝕒𝕓𝕔𝕕𝕖𝕗𝕘𝕙𝕚𝕛𝕜𝕝𝕞𝕟𝕠𝕡𝕢𝕣𝕤𝕥𝕦𝕧𝕨𝕩𝕪𝕫 𝔸𝔹ℂ𝔻𝔼𝔽𝔾ℍ𝕀𝕁𝕂𝕃𝕄ℕ𝕆ℙℚℝ𝕊𝕋𝕌𝕍𝕎𝕏𝕐ℤ
sans:    𝖺𝖻𝖼𝖽𝖾𝖿𝗀𝗁𝗂𝗃𝗄𝗅𝗆𝗇𝗈𝗉𝗊𝗋𝗌𝗍𝗎𝗏𝗐𝗑𝗒𝗓 𝖠𝖡𝖢𝖣𝖤𝖥𝖦𝖧𝖨𝖩𝖪𝖫𝖬𝖭𝖮𝖯𝖰𝖱𝖲𝖳𝖴𝖵𝖶𝖷𝖸𝖹
mono:    𝚊𝚋𝚌𝚍𝚎𝚏𝚐𝚑𝚒𝚓𝚔𝚕𝚖𝚗𝚘𝚙𝚚𝚛𝚜𝚝𝚞𝚟𝚠𝚡𝚢𝚣 𝙰𝙱𝙲𝙳𝙴𝙵𝙶𝙷𝙸𝙹𝙺𝙻𝙼𝙽𝙾𝙿𝚀𝚁𝚂𝚃𝚄𝚅𝚆𝚇𝚈𝚉
caps:    ᴀʙᴄᴅᴇꜰɢʜɪᴊᴋʟᴍɴᴏᴘǫʀꜱᴛᴜᴠᴡxʏᴢ ABCDEFGHIJKLMNOPQRSTUVWXYZ
wide:    ａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺ

Chrome/Linux: <Ctrl>+<Shift>+<U>, release and then type hex-number, <Space> or <Enter>

U+00A0 » « NO-BREAK SPACE (<Compose> <Space> <Space>)
U+00AD »­« SOFT HYPHEN (<Compose> <-> <-> <Space>)
U+2011 »‑« NON‑BREAKING HYPHEN
U+3164 »ㅤ« HANGUL FILLER
U+02BC »ʼ« MODIFIER LETTER APOSTROPHE (not a twitter hashtag boundary)