根城|ねじろnejiro[0]heiban (flat)

1. nounstronghold; citadel
2. nounbase (of operations); headquarters
   泥棒どろぼうは、間違まちがいなくここにいるはずよ。きっと、どこかに根城ねじろがあるから、そこを見みつけさえすればいいの。↗

   The thief has to be in here. I'm sure somewhere around is his stronghold so if we can just find that we've got him.

• Synonym本拠ほんきょWrittenWritten word for the core base of one's activities; more formal than 「根城」, with no image of a castle.
• Synonym根拠地こんきょちWrittenWritten term for the base where an army or organization carries out its activities.
• Synonym拠点きょてんNeutralNeutral word for a key location from which activities are run, e.g. 「営業拠点」.
• Synonym本拠地ほんきょちNeutralNeutral term for the home base of a sports team or a company's headquarters, as in 「本拠地球場」.
• RelatedベースCasualColloquial loanword for a base camp in climbing and similar activities; it can also mean a basis or foundation.
• Related基地きちNeutralNeutral word for a military or expedition base; more formal than 「根城」.
• Related地盤じばんNeutralNeutral word for a politician's electoral turf or support base — a sphere of influence, not a physical stronghold.

Use 「根城」 for a stronghold or lair that someone occupies, often with a negative nuance, as in 「盗賊の根城」. In formal contexts prefer 「本拠地」 or 「拠点」, and for military bases say 「基地」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 根拠こんきょとする城しろ。主将しゅしょうの居所いどころ。
2. 主要しゅような根拠こんきょとする場所ばしょ。