Let's play Standard Shiritori! しりとりをしましょう！

[Pablunpro]

偉えらい人ひと - big-wig

[possessedTeaCup]

隣町 (となりまち) - neighboring town

[Neon_Kitsune]

千葉（ちば）Chiba (Prefecture)

[mekkitymek]

番ばん号ごう - number

[Jose7822]

合成語 (ごうせいご) = Compound Word.

[TehFlashBang]

五段動詞ごだんどうし ー Godan Verb

[JLM94]

市役所 (しやくしょ）= City hall (already taken oops)

椎茸 (しいたけ)

[Jose7822]

It wasn’t taken, at least not in the current game, but I’ll go with your second word:

研究室 (けんきゅうしつ) = Lab.

[SoreWaMaichiru]

継端 ( つぎは) = opportunity to continue a conversation

[Neon_Kitsune]

俳句（はいく）Haiku

[Jose7822]

黒塗り (くろぬり) = Painted Black.

[Pablunpro]

立候補者りっこうほしゃ - candidate (for an election)​

[SoreWaMaichiru]

車輪窓 (しゃりんまど) = wheel window

[Pablunpro]

ドキドキ

[Jose7822]

禁止 (きんし) = Prohibition.

[Pablunpro]

シコシコ

[Jose7822]

コロナウイルスチェック

[Pablunpro]

くりくり

[TehFlashBang]

立派りっぱ ー Splendid

[Pablunpro]

パクパク