"\x{200B}" => {string => '␣'}, # nbsp: ~ in TeX
"\x{200C}" => {string => '|'}, # ISO-9995-7-081 lookalike (alt: ∣ ⊺ ⟙)
"\x{200D}" => {string => '⁀'}, # join (alt: ∤ |ͯ ⨝)
"\x{200B}" => {string => '␣'}, # nbsp: ~ in TeX
"\x{200C}" => {string => '|'}, # ISO-9995-7-081 lookalike (alt: ∣ ⊺ ⟙)
"\x{200D}" => {string => '⁀'}, # join (alt: ∤ |ͯ ⨝)