単 - simple, one, single

simple; plain; uncomplicated; straightforward; simple-minded; naive

single; simple; sole; individual; unitary

standalone book (i.e. not part of an anthology, series, etc.); (book published as a) single volume

single; one

simply; merely; only; solely

(intra-company) job transfer away from one's family; unaccompanied posting

unit price; unit cost

word; vocabulary

alone; by oneself; unaccompanied; unaided; single-handed; without one's family

unit (e.g. meters, grams, etc.); denomination

monotony; monotone; dullness

sole; single; solo