This is the 3223rd most frequent Japanese word.
大家
Landlord; owner of a rental property.
大家 here is used to mean 'landlord' referring to the person who owns and manages a building for tenants.
大家さんはこのビルのオーナーです。
The landlord is the owner of this building.
大家 is used in the sense of 'master' or 'expert,' referring to someone highly skilled and respected in a particular field.
彼は詩の大家として知られています。
He is known as a great master in poetry.
大家 here means 'experts' or 'authorities,' denoting a plural sense of distinguished individuals in a domain.