素性を隠す (sujō o kakusu - to hide one's identity/background)
Grammar & Usage
How it works
This phrase consists of the noun 素性 (sujō, meaning 'identity', 'lineage', or 'background'), the accusative particle を (o), and the transitive Godan verb 隠す (kakusu, meaning 'to hide'). It is used to describe deliberately masking or keeping secret who one really is, where one comes from, or one's history. It conjugates regular Godan verb endings via 隠す (e.g., 隠して, 隠した, 隠している).
Sample sentences
彼は素性を隠してその組織に潜入した。
He concealed his identity and infiltrated the organization.
探偵は素性を隠したままターゲットに近づいた。
The detective approached the target while keeping their identity hidden.
ネット上では素性を隠して自由に意見を述べる人が多い。
Many people express their opinions freely online while hiding their true identities.
Quick facts
Mnemonic
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Example
彼は素性を隠してその組織に潜入した。
He concealed his identity and infiltrated the organization.
探偵は素性を隠したままターゲットに近づいた。
The detective approached the target while keeping their identity hidden.
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