This is the 17676th most frequent Polish word.
zmasowany
Concentrated or massed.
Here, 'zmasowany' characterizes the 'atak' (attack) as concentrated or massive, implying a powerful, coordinated effort.
Wojska przeprowadziły zmasowany atak na pozycje przeciwnika.
The troops carried out a massive attack on the enemy's positions.
Here, 'zmasowany' describes the 'wysiłek' (effort) as focused and intense, emphasizing cooperative and thorough application of resources.
Zmasowany wysiłek drużyny przyniósł zwycięstwo.
The concentrated effort of the team brought victory.
In this case, 'zmasowane' is used to qualify 'działania' (actions), indicating that they were extensive, systematic, and coordinated.