source: [ゆるゆりの赤座あかりが不幸を回想するGIF画像｜無料GIF画像検索 GIFMAGAZINE 916909]

an event or a group of events occurring as part of a larger sequence; an incident or period considered in isolation:

(特別な意味をもつ)出来事, エピソード, 挿話.

e.g. the latest episode in the feud.

each of the separate installments into which a serialized story or radio or television program is divided.

(連続ドラマ［小説］などの)(1回分の)話

a finite period in which someone is affected by a specified illness:

〘医〙 (再発性の病気の)発病, 発作

e.g. acute psychotic episodes.

Music a passage containing distinct material or introducing a new subject.

〘楽〙 挿句, 間奏; (劇･小説中などの)挿話

a section between two choric songs in Greek tragedy.

late 17th century (denoting a section between songs in Greek tragedy): from Greek epeisodion, neuter of epeisodios ‘coming in besides’, from epi ‘in addition’ + eisodos ‘entry’ (from eis ‘into’ + hodos ‘way’).