This is the 1675th most frequent Russian word.
соединенные
"Соединенные" means "united" or "connected" in English.
The word "соединенные" describes pieces that have been connected or joined together.
Соединенные детали создают красивый стол.
The connected pieces create a beautiful table.
The word "соединенные" implies a union or coming together of efforts or actions.
Соединенные усилия команды помогли достичь успеха.
The united efforts of the team helped achieve success.
Here, "Соединенные" is part of a proper noun referring to a united entity, in this case, a nation.