When you use ConTeXt with the LuaTeX engine (Mark IV) all utf8 characters from your font may be directly used in your code. This may increase human readability or simplify typing some rare words (like foreign names).
Following list (of personally selected symbols) may be used for direct copy/pasting of characters to your code. For many cases, we have much more sophisticated methods (typing math), but still you can enjoy using these symbols in emails for example.
Dashes: ‐ 2010 - hyphen ‑ 2011 - non breaking hyphen ‒ 2012 - figure dash – 2013 - en dash — 2014 - em dash ― 2015 - horizontal bar ⎺⎻⎼⎽ 23ba .. 23bd - horizontal scan line Dots: 00b7 "·", 2022 "•", 2027 "‧", 2219 "∙", 22c5 "⋅" Numbers: ₀₁₂₃₄₅₆₇₈₉₊₋₌₍₎ subscript ⁰¹²³⁴⁵⁶⁷⁸⁹⁺⁻⁼⁽⁾ superscript ①②③④⑤⑥⑦⑧⑨⑩ ❶❷❸❹❺❻❼❽❾❿ ➀➁➂➃➄➅➆➇➈➉ ➊➋➌➍➎➏➐➑➒➓ ¼½¾⅓⅔⅕⅖⅗⅘⅙⅚⅛⅜⅝⅞⅟ Math/Physics: ‰‱ ≈≐∿≪≫≡≤≥≠≉≅∼ ∑˖˗−+∓±×∙˖˗∞ ∈∉∊∋∌∍ ∩∪⊂⊃⊄⊅⊆⊇⊈⊉⊊⊋ ∫∬∭∮∯∰∆∇ ℂℚℝℤℕℕ x∊ℝ ℎℏ°℃ √∛∜∢ √(x²˖y²) 𝛢𝛣𝛤𝛥𝛦𝛧𝛨𝛩𝛪𝛫𝛬𝛭𝛮𝛯𝛰𝛱𝛲𝛳𝛴𝛵𝛶𝛷𝛸𝛹𝛺 𝛼𝛽𝛾𝛿𝜀𝜁𝜂𝜃𝜄𝜅𝜆𝜇𝜈𝜉𝜊𝜋𝜌𝜍𝜎𝜏𝜐𝜑𝜒𝜓𝜔𝜕𝜖𝜗𝜘𝜙𝜚𝜛 α 03b1 μ 03bc µ 00b5 π 03c0 Ω 03a9 Ω 2126 Δ 0394 Θ 0398 ⌀ 2300 - diameter ∅ 2205 - empty set ⍉ 2349 Greek: ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ αβγδεζηθικλμνξοπρςστυφχψω Czech specific: áčďéěíňóřšťúůýž ÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ „uozovky“ German: ÄÖÜäöüß Quotation marks: «»‘’‚‛“”„‟‹› Currency: €₵£¥£¢¥$$ Arrows: ⟶⟵⟸⟹➘➙➚➛➜➝➞➡➢➣➤⬅⬆⬇⬈⬉⬊⬋⬌⬍ ←↑→↓↔↕↖↗↘↙↤↥↦↧⇄⇅⇐⇑⇒⇓⇔⇕⇖⇗⇘⇙ Others: №©®™ Spaces(between xx): (nbsp):x x:00a0 en space:x x:2002 em space:x x:2003 mid space:x x:2005 thin space:x x:2006 hair space:x x:200a