also: たしさいさい
noun, na-adjective, noun which may take the genitive case particle 'no', taru-adjective, adverb taking the 'to' particle
galaxy of able persons; collection of talented people
Yojijukugo describing a gathering or group that includes many capable, talented individuals. Often used in formal or literary contexts to praise an organization or event's participants.
この会議には多士済々の専門家が集まった。
A galaxy of experts gathered for this conference.
I was overwhelmed by the lineup of so many talented people.