籠(こ)もる

父(ちち)が書斎(しょさい)に籠(こ)もって執筆(しっぴつ)しています。

My father has secluded himself in his study and is writing. {to seclude oneself, to be confined in, to be filled (e.g. with emotion, satire, etc.), to be heavy (with), to be stuffy, to be implied}

自分(じぶん)の殻(から)に籠(こ)もっている人(ひと)は世界(せかい)が狭(せま)いままだ。

People who seclude themselves in their own shell remain in a narrow world. {to seclude oneself, to be confined in, to be filled (e.g. with emotion, satire, etc.), to be heavy (with), to be stuffy, to be implied}

お姫様(ひめさま)は王様(おうさま)から城(しろ)に籠(こ)もるように命令(めいれい)されています。

The princess has been ordered by the king to seclude herself in the castle. {to seclude oneself, to be confined in, to be filled (e.g. with emotion, satire, etc.), to be heavy (with), to be stuffy, to be implied}

声(こえ)が籠(こ)もってよく聞(き)こえないのでメガホンを使(つか)うことにしました。

I decided to use a megaphone because the voice was muffled and hard to hear. {to seclude oneself, to be confined in, to be filled (e.g. with emotion, satire, etc.), to be heavy (with), to be stuffy, to be implied}

会場(かいじょう)に人(ひと)の熱気(ねっき)が籠(こ)もっているとあって、空調(くうちょう)がなかなか効(き)きません。

Given that the venue is filled with people's fervor, the air conditioning doesn't seem to work effectively. {to seclude oneself, to be confined in, to be filled (e.g. with emotion, satire, etc.), to be heavy (with), to be stuffy, to be implied}