Senses
一家 [classifier]
a measure word used for a single family, household, company, or business establishment
一家 the whole family
the entire family; all members of a household
一家 school of thought
a unique style, school of thought, or distinctive system of ideas
一家 the same family
belonging to the same family unit
一家 each person
each individual person; one by one (archaic or literary usage)
一家 same side
belonging to the same group, team, or faction