濃(こ)いdeep (colour), dark, strong (flavour, smell, etc.), thick (consistency), dense, strong (possibility, etc.), thick (i.e. 'as thick as thieves'), close, deep (love, etc.)

内容(ないよう)が濃(こ)い小説(しょうせつ)は面白(おもしろ)いです。

The novel with rich content is interesting. {deep (colour), dark, strong (flavour, smell, etc.), thick (consistency), dense, strong (possibility, etc.), thick (i.e. 'as thick as thieves'), close, deep (love, etc.)}

墨(すみ)の色(いろ)が濃(こ)いので水(みず)を少(すこ)し足(た)しました。

I added a little water because the color of the ink was dark. {deep (colour), dark, strong (flavour, smell, etc.), thick (consistency), dense, strong (possibility, etc.), thick (i.e. 'as thick as thieves'), close, deep (love, etc.)}

ヒスパニック系(けい)の人(ひと)たちは目鼻立(めはなだ)ちが濃(こ)い。

Hispanic people have distinctive facial features. {deep (colour), dark, strong (flavour, smell, etc.), thick (consistency), dense, strong (possibility, etc.), thick (i.e. 'as thick as thieves'), close, deep (love, etc.)}

眠気(ねむけ)を覚(さ)ますには濃(こ)いエスプレッソを三(さん)杯(ばい)ほど飲(の)まなければ…。

I need to drink about three cups of dark espresso to wake up from sleepiness... {deep (colour), dark, strong (flavour, smell, etc.), thick (consistency), dense, strong (possibility, etc.), thick (i.e. 'as thick as thieves'), close, deep (love, etc.)}

彼(かれ)は化粧(けしょう)が濃(こ)い人(ひと)を見(み)つけるにつけ「ケバいな…」と呟(つぶや)きます。

Whenever he finds a person with heavy makeup, he murmurs, 'So gaudy...' {deep (colour), dark, strong (flavour, smell, etc.), thick (consistency), dense, strong (possibility, etc.), thick (i.e. 'as thick as thieves'), close, deep (love, etc.)}