湮 {yīn}

1. to soak
2. to blotch
3. to splotch

湮滅〔-灭〕 jan¹ mit⁶ {yīn miè}

1. to destroy
2. to disappear
3. annihilation

湮沒〔-没〕 jan¹ mut⁶ {yān mò}

1. to bury
2. to submerge
3. to pass into oblivion
4. to obliterate
5. to annihilate (physics)

湮沒無聞〔-没无闻〕 jan¹ mut⁶ mou⁴ man⁴ {yān mò wú wén}

to pass into oblivion