The plural of product is products.
By-products is the plural of by-product.
The plural of product is products.
The plural form for the noun tooth is teeth.The plural possessive form is teeth's.Example: This product will improve your teeth's whiteness.
The plural form for the noun tooth is teeth.The plural possessive form is teeth's.Example: This product will improve your teeth's whiteness.
mousse as in the hair product
Product is a noun.
The product of the act of creation is a creation. The products of many acts of creation are creations.
The noun Coca Cola is a singular noun, the plural for is Coca Colas.The noun Coca Cola is a proper noun, the name of a specific product. A proper noun is always capitalized.
The noun Oreo is singular, a word for one Oreo. The plural form is Oreos.The noun Oreo is a proper noun, the name of a specific product and a registered trademark. A proper noun is always capitalized.
Believe it or not, the proper noun Jell-O is an uncountable noun. Jell-O is a single, individual product of one company, requiring no plural form. The product Jell-O is an uncountable noun as a word for a substance. Units are expressed as boxes of Jell-O, flavors of Jell-O, dishes of Jell-O, etc.
The plural of 'this' is 'these' and the plural of 'that' is 'those'.
Isthmi is plural. There are actually two plural forms. I will list them from singular to plural. Isthmus - Singular Isthmi - Plural Isthmuses - Plural