結集 けっしゅう
kesshū

Noun
Suru Verb

1. concentration (of efforts, forces, etc.); gathering together; regimentation; marshalling; mobilization

Transitive
喫煙 きつえん しゃ あたらしい禁煙 きんえん ほう支持 しじして結集 けっしゅうしています。
hikitsuenshawa atarashii kin'enhōo shiji shite kesshū shite imasu.
Non-smokers are rallying behind the new anti-smoking law.