‾

overline

Unicode code point: U+203E

↓

downwards arrow

Unicode code point: U+2193

━

box drawings heavy horizontal

Unicode code point: U+2501

╍

box drawings heavy double dash horizontal

Unicode code point: U+254D

╸

box drawings heavy left

Unicode code point: U+2578

╺

box drawings heavy right

Unicode code point: U+257A

⚊

monogram for yang

Unicode code point: U+268A

➖

heavy minus sign

Unicode code point: U+2796