Question

what is by-election​

Answer 1

Answer:

an election held in a single political constituency to fill a vacancy arising during a government's term of office.

Answer 2

$\huge\tt\blue{⚲\:Hello\:Mate}$

$\tt\pink{A\: by-election,\: also\: spelled\: bye-election, \:and}$$\tt\pink{ also \:known \:as\: a\: special\: election \:or\: a\: bypoll, \:is}$$\tt\pink{ an \:election\: used\: to \:fill \:an \:office \:that}$$\tt\pink{ has\: become \:vacant \:between \:general \:elections. }$