occasion; time; section (of a literary work); paragraph; season; term; principle
medicine; pharmaceuticals; efficacious chemical (gunpowder, pesticide, etc.); (pottery) glaze; (illegal) drug; narcotic
coprophagia; coprophagy; scatophagy; eating feces (faeces)
rivalry (between two equally strong sides); struggle for supremacy; competing (with); vying (with); contending (with); being an equal match (for)
tumor; tumour; neoplasm; neoplasia
becoming cancerous; canceration
learning; scholarship; study; study of ...; -ology; -ics
therapy; treatment; remedy; cure
deficit; shortage; loss; being partially broken; being partially missing; being partially removed
United Kingdom of Great Britain and Northern Ireland; UK
chase; pursuit; tracking; following up; tracing
on the way; en route; in the middle of; midway; halfway
deformity; malformation; strange shape; unusual shape
return; relapse; recurrence
riskiness; (level of) danger
self-consciousness; self-awareness
conception; fertilization; fertilisation
twenty-first day of the month; twenty-one days
double; twice (as much); times (as much); -fold; 1-nth; 1 to n
existence or nonexistence; presence or absence; consent or refusal; yes or no
change; alteration; modification
risk ratio; percentage of risk; hazard rate; significance level; level of significance
liver; innards; courage; spirit; crux; essential point
-ian (e.g. Italian); -ite (e.g. Tokyoite); -er (e.g. performer, etc.); person working with ...; man; person
child (esp. a boy); viscount; founder of a school of thought (esp. Confucius); master; masters and philosophers (categorization of Chinese classical literature); (arch.) you; -er (i.e. man who spends all his time doing...)
to be late; to be delayed; to fall behind (in a race, one's studies, etc.); to lag behind; to be bereaved of; to be preceded by (someone) in death
pink; erotic (usually used in relation to the sex industry); blue; pornographic
to rise; to swell; to be promoted
to be helpful; to help; to be of assistance; to come in handy
alias; pseudonym; pen name; nom de plume; different name; other name
1,000,000; one million; million; many
one Nth part (e.g. one fifth, one tenth); one out of N