<strong>そういえば</strong>、昨夜（さくや）は何時（なんじ）に<span class='vocab-popout' data-vocab-id='511'>家（いえ）</span>に帰（かえ）ったの？

<strong>そういえば</strong>、<span class='vocab-popout' data-vocab-id='309'>今日（きょう）</span>は<span class='vocab-popout' data-vocab-id='732'>母（はは）</span>の日（ひ）だ。

<strong>そういえば</strong>、着替（きが）え持（も）ってきてくれた？

<strong>そういえば</strong>、<span class='vocab-popout' data-vocab-id='648'>昨日（きのう）</span>の卒業式（そつぎょうしき）は<span class='vocab-popout' data-vocab-id='493'>どう</span>だった？

<strong>そういえば</strong>、<span class='vocab-popout' data-vocab-id='308'>今度（こんど）</span>のイベントで機関車（きかんしゃ）に乗（の）れるみたいです<span class='gp-popout' data-gp-id='78'>よ</span>。

<strong>そういえば</strong>、客席（きゃくせき）に君（きみ）の<span class='vocab-popout' data-vocab-id='50'>お父（とう）さん</span>と<span class='vocab-popout' data-vocab-id='49'>お母（かあ）さん</span>がいた<span class='gp-popout' data-gp-id='78'>よ</span>。

<strong>そういえば</strong>、<span class='vocab-popout' data-vocab-id='308'>今度（こんど）</span>金魚屋（きんぎょや）<span class='vocab-popout' data-vocab-id='113'>さん</span>に<span class='gp-popout vocab-popout' data-gp-id='26' data-vocab-id='935'>行（い）く</span>んだけど、買（か）ってきてあげようか？

<strong>そういえば</strong>、クリーニングに出（だ）していたのを忘（わす）れてた。取（と）りに行（い）かないと。

<strong>そういえば</strong>、お芝居（しばい）の稽古（けいこ）は順調（じゅんちょう）？

<strong>そういえば</strong>、蛍光灯（けいこうとう）が切（き）れたから買（か）わないといけません。

<strong>そういえば</strong>、<span class='vocab-popout' data-vocab-id='672'>最近（さいきん）</span><span class='vocab-popout' data-vocab-id='364'>全然（ぜんぜん）</span>親孝行（おやこうこう）してないな...

<strong>そういえば</strong>、<span class='vocab-popout' data-vocab-id='308'>今度（こんど）</span>コーラス<span class='vocab-popout' data-vocab-id='1015'>やる</span>んだけど、<span class='gp-popout vocab-popout' data-gp-id='32' data-vocab-id='255'>一緒（いっしょ）に</span>やりませんか？

Three expressions in Japanese for “by the way”

<div class='writeup-body'><span class='gp-popout' data-gp-id='332'>そういえば</span> is a hypothetical structure in Japanese consisting of the adverb そう 'like that', and the ば conjunctive form of the う-Verb 言（い）う 'to say'. Common translations include 'speaking of which', 'by the way', and 'come to think of it'. These translations are actually very close to the literal translation of 'if saying that' in that they all refer back to the previous statement as being a trigger for bringing up a topic that the speaker wants to discuss.<br><span class='gp-popout' data-gp-id='332'>そういえば</span> will primarily appear at the beginning of sentences, before the speaker will then bring up the topic that they were reminded of.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'><span class='gp-popout' data-gp-id='332'>そういえば</span>、この前（まえ）借（か）りた本（ほん）読（よ）み終（お）わったよ！めちゃくちゃ面白（おもしろ）かった！</div><div class='writeup-example--english'>By the way, I finished reading the book I borrowed from you the other day! It was super interesting!</div></li><li class='writeup-example'><div class='writeup-example--japanese'><span class='gp-popout' data-gp-id='332'>そういえば</span>、大家（おおや）さんに家賃（やちん）振（ふ）り込（こ）んでくれた？</div><div class='writeup-example--english'>Speaking of which, did you transfer the rent to the landlord for me?</div></li><li class='writeup-example'><div class='writeup-example--japanese'><span class='gp-popout' data-gp-id='332'>そういえば</span>、さっき駅（えき）でお母（かあ）さんの友達（ともだち）に会（あ）ったよ。よろしくだって。</div><div class='writeup-example--english'>Speaking of which, I met your friend at the station. She told me to tell you she said hi.</div></li></ul><div class='writeup-caution'>Caution - Due to <span class='gp-popout' data-gp-id='332'>そういえば</span> refering to something that has already been brought up over the course of a conversation, it will not be used to move on to completely unrelated topics in the same way that phrases like 'by the way' are used in English.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>中田（なかた）さん：今度（こんど）バッティングセンターに行（い）こ！高橋（たかはし）さん：<span class='gp-popout' data-gp-id='332'>そういえば</span>、藤田（ふじた）さんと伊藤（いとう）くんが付（つ）き合（あ）い始（はじ）めたって聞（き）いた？</div><div class='writeup-example--english'>Tanaka-san: Let's go to the batting cage next time!Takahashi-san: Speaking of which, did you hear that Fujita-san and Ito-kun has started dating? (Unnatural Japanese)</div></li></ul></div><div class='writeup-funfact'>Fun-fact - <span class='gp-popout' data-gp-id='332'>そういえば</span> is very similar in the way it is used to といえば, with そう simply replacing the direct quotation of と. Many textbooks will list both as a single grammar point, despite そういえば itself basically being a set phrase.</div></div>

Grammar Info

そういえば

speaking of which, by the way, come to think of it