Synonyms of massing

massing

verb

present participle of mass

as in accumulating

to gradually form into a layer, pile, or mass

clouds massing on the western side of the mountain range

Synonyms & Similar Words

• accumulating
• gathering
• amassing
• concentrating
• collecting
• accreting
• piling (up)
• conglomerating
• stacking (up)
• building up
• clumping
• drifting
• lumping
• agglutinating
• banking
• ridging

Antonyms & Near Antonyms

• scattering
• dispersing
• dissipating

Example Sentences

Recent Examples of massing

As technology changes battlefields, traditional principles for creating a military advantage—such as maneuvering forces and massing combat power—are becoming harder to apply, driving wars toward attrition. — Nadia Schadlow, Foreign Affairs, 18 Sep. 2026

Crayfish have joined the list of non-native species massing below Glen Canyon Dam for a potential invasion of Grand Canyon, raising alarms from conservationists who want to protect pristine tributary streams in the national park. — Brandon Loomis, AZCentral.com, 14 Aug. 2026

In October 1973, Israeli military intelligence had detailed reports of Egyptian and Syrian forces massing on the borders. — Bryce Hoffman, Forbes.com, 17 May 2026

Trump has declared success and pressured Iran to agree to a deal to end the war, while massing new troops in the Middle East and threatening intense escalation if Tehran doesn't reopen the vital Strait of Hormuz trade route. — Mosheh Gains, NBC news, 3 Apr. 2026

Space plants three feet apart for massing in borders and beds or to plant a low hedge. — Kim Toscano, Southern Living, 19 Feb. 2026

Small clusters of troops from Britain, France, Germany, Sweden, Norway, Finland, and the Netherlands are massing for joint military exercises with Denmark. — Philip Elliott, Time, 20 Jan. 2026

In November 2021, while massing troops along its border with Ukraine, Russia threatened to cripple GPS if NATO got in the way. — Letters To The Editor, Washington Post, 6 Jan. 2026

Chief architect Ana Costa—working with Pedro Domingos and João Favila Meneses—designed the buildings with natural materials like wood and stone and kept massing low to follow the site’s topography. — Abby Montanez, Robb Report, 24 Nov. 2025