i don't think so that there are such kinds of words.
Some examples of words with no singular form are "scissors," "pants," "glasses," and "sheep." These words are known as pluralia tantum, meaning they only exist in their plural form and do not have a singular counterpart.
Examples of nouns that are the same in the singular and the plural:sheepdeergrouseChineseSwissLebaneseoffspringknowledgebarracksinformationbutterswine
Words that are the same in the singular and plural:scissorsinformationsheepmusicnewstrousersheadquartersgolddeeroffspring
Some nouns that do not have a singular form are:Aggregate nouns, words representing an indefinite number of parts. Examples:accommodationsbarracksclothescommunicationsgoodsspeciesNouns that are a short form for a 'a pair of'. Examples:glassesscissorstweezerspajamaspantsshorts
Some examples of words that are both singular and plural include deer, sheep, and fish.
Some nouns that are the same for the singular and the plural are:deerfishelksheepoffspringSome nouns are singular but appear to be plural; words that are a short form for 'a pair of...'. There is no plural for these nouns, the plurals are expressed by using 'pairs of...'. Some examples are:pantsshortsglassesscissorsbinocularsUncountable nouns have no plural form and take a verb for the singular. Some uncountable nouns are:moneyinformationnewsadviceelectricity
The singular form of "aspirin" is "aspirin." It's one of those words where the singular and plural are the same!
The singular possessive form is a friend's photo.
Some nouns that are the same form for singular or plural:baggagebisonchamoisclothingequipmentfurnitureinformationluggagemooseroeshamanismsheep
Nouns that have no singular are words that are a short form for 'a pair of', such as glasses or scissors; aggregate nouns such as police or accommodations; and nouns that are the same singular or plural, such as sheep or offspring.
A singular noun form is a word for one person, place, or thing. Some examples are:areabasiscarddreadeggfungashairivoryjoykneeluckmannoteovalpoolquillrosesintrainunclevanillawestxylophoneyawnzero
Some animals that have the same form for the singular or the plural are:deersalmonsheepswinetrout
The singular form is ombudsman.
it is already in its singular form.
The singular form is money.
One group of words that have no singular form are aggregate nouns, words representing an indefinite number of parts; aggregate nouns have no singular form. Examples:accommodationsamendsarchivesarms (weapons)bowelsbrains (intellect)clothescommunicationscongratulationscontentscorpsgoodsintestinesmeaslesnewsspeciesthanksAnother group of nouns are the binary nouns, words for things that are two parts making up the whole, they are a shortened form for 'a pair of', for example:one pair of glasses, two pairs of glassesbellowsbinocularsforcepsjeanspajamaspantspliersshearsshortsscissorstightstongstrouserstweezers
The singular form for the plural noun stories is story.
The singular form for the noun families is family. The singular possessive form is family's.