The plural of man-of-war is men-of-war or man-of-wars.
1. As a Warship: A man-of-war refers to a powerful and heavily armed naval warship historically used in warfare.
Man-of-war ships were often employed by nations to assert their naval dominance and protect their interests.
2. 'Portuguese Man-of-War' as a Member of the Genus Physalia: A marine creature and member of the genus Physalia which comprises several specialized individuals called polyps that work together as a unified entity.
The grammar rule for forming the plural of "man-of-war" depends on its usage:
1. As a Warship: The plural form of "man-of-war" as a warship is "men-of-war." This plural form adheres to the standard English rule of adding an "-s" to the end of a singular noun to indicate plurality.
2. 'Portuguese Man-of-War': When referring to the Portuguese man-of-war, there are two accepted plural forms: "Portuguese man-of-wars" or "Portuguese men-of-war." Both forms are used to describe multiple specimens of this particular marine creature, emphasizing their collective nature.
The term "man-of-war" is primarily a countable noun when used to refer to warships. Countable nouns are individual entities that can be counted and expressed in both singular and plural forms.
However, when referring to the Portuguese man-of-war, it is treated as an uncountable noun or a mass noun. Uncountable nouns represent substances, concepts, or collective entities that cannot be readily divided into separate units.
The collective noun for a group of men-of-war, specifically warships, is "fleet." A fleet denotes a group or collection of naval vessels, often used in military contexts.
The term "fleet" emphasizes the organized and coordinated nature of multiple warships operating together. It symbolizes the strength and strategic capabilities of a united naval force.