就(つ)くto ascend (the throne), to accede, to take (seat, position, course, etc.), to assume, to start (on a journey), to commence, to depart, to study (under teacher), to be an apprentice

彼(かれ)が王座(おうざ)に就(つ)いたのは１５歳(じゅうごさい)の時(とき)でした。

He ascended the throne when he was 15 years old. {to ascend (the throne), to accede, to take (seat, position, course, etc.), to assume, to start (on a journey), to commence, to depart, to study (under teacher), to be an apprentice}

管理(かんり)職(しょく)に就(つ)いている父(ちち)の年収(ねんしゅう)は１千万(いっせんまん)を超(こ)えている。

My father, who has assumed a managerial position, earns an annual income of over 10 million. {to ascend (the throne), to accede, to take (seat, position, course, etc.), to assume, to start (on a journey), to commence, to depart, to study (under teacher), to be an apprentice}

お昼寝(ひるね)をしてしまったせいで眠(ねむ)りに就(つ)いたのは午前(ごぜん)２時(にじ)でした。

Because I ended up taking a nap, I didn't go to sleep until 2 a.m. {to ascend (the throne), to accede, to take (seat, position, course, etc.), to assume, to start (on a journey), to commence, to depart, to study (under teacher), to be an apprentice}

不倫(ふりん)をした夫(おっと)とお互(たが)いの両親(りょうしん)を交(まじ)えて話(はな)し合(あ)いの席(せき)に就(つ)く事(こと)にした。

We decided to have a discussion involving both our parents and my husband who had an affair, taking a seat at the negotiation table. {to ascend (the throne), to accede, to take (seat, position, course, etc.), to assume, to start (on a journey), to commence, to depart, to study (under teacher), to be an apprentice}

人(にん)と話(はな)すことが苦手(にがて)なら、営業(えいぎょう)の仕事(しごと)に就(つ)く判断(はんだん)が正解(せいかい)だとは言(い)えません。

If you're not good at talking with people, it can't be said that deciding to take a job in sales is the correct choice. {to ascend (the throne), to accede, to take (seat, position, course, etc.), to assume, to start (on a journey), to commence, to depart, to study (under teacher), to be an apprentice}