呑酸 （ドンサン） acid reflux, heart-burn

呑舟 （ドンシュウ） swallowing a boat whole

併呑 （ヘイドン） annexation, merger, swallowing up

清濁併呑 （セイダクヘイドン） being so broad-minded as to accept all sorts of things, both good and evil, being broad-minded enough to be tolerant of people of all shades

飲む （のむ） to drink, to gulp, to swallow, to take (medicine), to smoke (tobacco), to engulf, to overwhelm, to keep down, to suppress, to accept (e.g. demand, condition), to make light of, to conceal