異

mutant

virus variant

Linguistics

homophone; homonym

stomach pumping; gastric irrigation; gastric lavage; gastric suction; gastrolavage

Genetics; Medicine

chromosomal abnormality; chromosomal disorder

technological singularity; singularity

natural disaster; calamity

Proverb

inscrutable are the ways people are brought together; there is no telling how people are brought together; marriages are made in heaven

Biology

mutant strain; mutation; variant

singularity (climate); day in the calendar when a particular weather phenomenon is statistically likely to occur

to be different (from each other); to differ

miracle; wonder; wondrous thing

namesake; person with the same name

color-vision deficiency; colour-vision deficiency; color-blindness; colour-blindness

Proverb

inscrutable and interesting are the ways people are brought together

minor difference

heterochromia iridis; eyes differing in colour (color)

differentiation

cohabiting but living in different worlds

equal workmanship but different style

mutagenicity

Linguistics

homophony (having the same pronunciation as another word but a different meaning); homonymy

natural disaster; calamity

Mathematics

nonsingular