Plural of Theory, Singular of Theories, Meaning of Theory, synonyms of Theory in English
Here we will learn the meaning of Theory & Theories, singular, plural, synonyms and example sentences of Theory and Theories. This basic lesson is very useful for kids and beginners. You will understand the difference between Theory and Theories. You will come to know about the singular of Theories and plural of Theory. This is brief but detailed lesson.
Meaning of Theory, Theories
The meaning of Theory is a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
Singular and Plural of Theory, Theories in English
Singular | Plural |
Theory | Theories |
Synonyms of Theory, Theories
- approach
- argument
- assumption
- code
- concept
- doctrine
- idea
- ideology
- method
- philosophy
- plan
- position
- premise
- proposal
- provision
- rationale
- scheme
- speculation
- suspicion
- system
- thesis
- understanding
- base
- basis
- codification
- conditions
- conjecture
- dogma
- feeling
- foundation
- grounds
- guess
- guesswork
- hunch
- impression
- outlook
- postulate
- presentiment
- presumption
- shot
- stab
- supposal
- supposition
- surmise
- theorem
- formularization
- suppose
- systemization
Use of Theory & Theories in Example Sentences
- The plan appears to be sound in theory.
- A new theory of life was proposed by the biologist.
- We decided to put the theory to the test.
- Findings later confirmed the scientist’s theory.
- It was a theory with no evidence to back it up.
- These fresh facts cast doubt on the theory.
- My theory has been supported by the experiment.
- The theory has yet to be proven scientifically.
- His theory appears to be supported by recent research.
A huge list of Singulars and Plurals in English.
Baby | Babies |
Actor | Actors |
Office | Offices |
Computer | Computers |
Child | Children |
Day | Days |
captain | Captains |
City | Cities |
Bank | Banks |
House | Houses |
Cloth | Clothes |
Chocolate | Chocolates |
class | Classes |
Newspaper | Newspapers |
Sheep | Sheep |
Girl | Girls |
Ring | Rings |
camp | Camps |
Fork | Forks |
Monkey | Monkeys |
Accident | Accidents |
Ball | Balls |
cigarette | Cigarettes |
club | Clubs |
engine | Engines |
Man | Men |
kitchen | Kitchens |
Person | People |
field | Fields |
Horse | Horses |
election | Elections |
edge | Edges |
Kid | Kids |
Party | Parties |
driver | Drivers |
Feather | Feathers |
Louse | Lice |
bird | Birds |
bridge | Bridges |
doctor | Doctors |
Magazine | Magazines |
Glass | Glasses |
Dress | Dresses |
farm | Farms |
Mouse | Mice |
Piano | Pianos |
chapter | Chapters |
Account | Accounts |
Apple | Apples |
Table | Tables |
dream | Dreams |
Adult | Adults |
Teacher | Teachers |
Shop | Shops |
Goose | Geese |
Beach | Beaches |
Cup | Cups |
Phone | Phones |
Student | Students |
Brothers | Brothers |
factory | Factories |
card | Cards |
Apartment | Appartments |
Answer | Answers |
Egg | Eggs |
face | Faces |
Address | Addresses |
Story | Stories |
Bottle | Bottles |
Pencil | Pencils |
School | Schools |
Plate | Plates |
country | Countries |
Artist | Artists |
library | Libraries |
Boy | Boys |
Door | Doors |
Suitcase | Suitcases |
Lady | Ladies |
Bed | Beds |
finger | Fingers |
bill | Bills |
film | Films |
list | Lists |
Daughter | Daughters |
Cat | Cats |
Bell | Bells |
Potato | Potatoes |
Boat | Boats |
castle | Castles |
Bag | Bags |
coat | Coats |
bush | Bushes |
College | Colleges |
Tomato | Tomatoes |
Idea | Ideas |
crowd | Crowds |
Pet | Pets |
Boot | Boots |
Tooth | Teeth |
chest | Chests |
Notebook | Notebooks |
Orange | Oranges |
ear | Ears |
corner | Corners |
Book | Books |
Woman | Women |
Hand | Hands |
Pilot | Pilots |
Article | Articles |
Friend | Friends |
Animal | Animals |
lake | Lakes |
Insect | Insects |
Chair | Chairs |
father | Fathers |
Deer | Deer |
Box | Boxes |
Bus | Buses |
king | Kings |
eye | Eyes |
machine | Machines |
Match | Matches |
case | Cases |
effect | Effects |
Waiter | Waiters |
Banana | Bananas |
Battle | Battles |
Tree | Trees |
Car | Cars |
key | Keys |
judge | Judges |
job | Jobs |
issue | Issues |
island | Islands |
husband | Husbands |
hour | Hours |
hotel | Hotels |
hospital | Hospitals |
hill | Hills |
heart | Hearts |
head | Heads |
hat | Hats |
hall | Halls |
gun | Guns |
group | Groups |
gate | Gates |
garden | Gardens |
game | Games |
foot | Feet |
problem | Problems |
plant | Plants |
plane | Planes |
plan | Plans |
picture | Pictures |
path | Paths |
park | Parks |
page | Pages |
neck | Necks |
nation | Nations |
motor | Motors |
month | Months |
model | Models |
mistake | Mistakes |
minute | Minutes |
method | Methods |
message | Messages |
member | Members |
meeting | Meetings |
meal | Meals |
Town | Towns |
Tour | Tours |
Thought | Thoughts |
Tent | Tents |
Task | Tasks |
Street | Streets |
Stream | Streams |
Station | Stations |
Star | Stars |
Spot | Spots |
Son | Sons |
Smile | Smiles |
Sister | Sisters |
Shock | Shocks |
Shirt | Shirts |
Scheme | Schemes |
Room | Rooms |
Road | Roads |
RIver | Rivers |
Project | Projects |
Valley | Valleys |
Village | Villages |
Walk | Walks |
Wall | Walls |
Week | Weeks |
Window | Windows |
Year | Years |
Mother | Mothers |
Inch | Inches |
Chief | Chiefs |
Essay | Essays |
Fox | Foxes |
Ox | Oxen |
Sky | Skies |
Mango | Mangoes |
Leaf | Leaves |
Cow | Cows |
Son-in-law | Sons-in-law |
Toy | Toys |
Singular | Plural |
News | News |
Bamboo | Bamboos |
Hair | Hair |
Radio | Radios |
Daughter-in-law | Daughters-in-law |
Dozen | Dozen |
Fish | Fish |
Father-in-law | Fathers-in-law |
Mother-in-law | Mothers-in-law |
Fly | Flies |
Proof | Proofs |
Hoof | Hoofs |
Leg | Legs |
Step son | Step sons |
Army | Armies |
Cry | Cries |
Watch | Watches |
Poetry | Poetry |
Class fellow | Class fellows |
Baby | Babies |
Maid servant | Maid servants |
Hero | Heroes |
Duty | Duties |
Jar | Jars |
Family | Families |
Copy | Copies |
Clutch | Clutches |
Scissors | Scissors |
Half | Halves |
Life | Lives |
Knife | Knives |
Bench | Benches |
Sister-in-law | Sisters-in-law |
Cliff | Cliffs |
Lass | Lasses |
Trousers | Trousers |
Loaf | Loaves |
Uncle | Uncles |
Cuckoo | Cuckoos |
Calf | Calves |
Gas | Gasses |
Brother-in-law | Brothers-in-law |
Wife | Wives |
Ass | Asses |
Self | Selves |
Ray | Rays |
Dog | Dogs |
Thief | Thieves |
Donkey | Donkeys |
Bone | Bones |
Buffalo | Buffaloes |
Baby | Baby |
Brother-in-law | Brothers-in-laws |
Caddy | Caddies |
Class  fellow | Class fellows |
Daughter-in-law | Daughters-in-laws |
Deck | Decks |
Deer | Deers |
Dozen | Dozens |
Father-in-law | Fathers-in-laws |
Fish | Fishes |
Hair | Hairs |
Loof | Loops |
Love | Loves |
Maidservant | Maidservants |
Mother-in-law | Mothers-in-laws |
Penny | Pennies |
Pitch | Pitches |
Poetry | Poetries |
Quiz | Quizzes |
Scissor | Scissors |
Sheep | Sheeps |
Singular  noon | Plural noun |
Sister-in-law | Sisters-in-laws |
Son-in-law | Sons-in-laws |
Stepson | Stepsons |
Trouser | Trousers |
Wish | Wishes |