How do you say “approximate” in Vietnamese?

Vietnamese words for “approximate”

• xấp xỉListenadjective
  Hanoi [səp̚˧˦ si˧˩] · Saigon [səp̚˦˥ sɪj˨˩˦]xấp rising xỉ dipping

  approximate

  for “approximate” meaning: Nearing correctness; nearly exact; not perfectly accurate.

• xêm xêmListenadjective
  Hanoi [sem˧˧ sem˧˧] · Saigon [sem˧˧ sem˧˧]xêm level xêm level

  similar to; almost the same

  for “approximate” meaning: Nearing correctness; nearly exact; not perfectly accurate.