暗あん黙もくの主しゅ語ご

Meanings

1

understood subject

Linguistic term for a subject that is not explicitly stated but is understood from context, common in Japanese.

主しゅ語ご
Refers to the grammatical subject in general, whether explicit or implicit.
省しょう略りゃく
Ellipsis; the broader phenomenon of omitting words, including subjects.

Compound of 暗黙 (implicit) and 主語 (subject).