1. গলদা চিংড়ি – Crayfish: Lobsters come from the sea; crayfish come from freshwater. Crayfish (also known as crawfish) also tend to be smaller. Further confusion over these জন্তু জানোয়ার exists in some countries like Australia, New Zealand, and South Africa where the term crayfish is often used when referring to lobster.

2. Broth – সুপ – Stock: While these terms are often used interchangeably, they do all have a difference. Stock is water (and optionally other liquids) in which vegetables অথবা জন্তু জানোয়ার অথবা both are simmered over a long period to extract flavors. Stock normally contains no salt. When আপনি add salt to the stock to make it tasty it becomes a broth. Broth is a type of সুপ – সুপ is a liquid savory খাবার which can be thin (broth) অথবা thick. Stock is not সুপ as it is not meant to be eaten until it is combined with seasonings.

3. Ghost – Ghoul: A ghost is the departed soul of a dead human. A ghoul is an immaterial being who never lived as a human. Ghouls come from Arabic legends in which they are creatures that eat stolen corpses and children.

4. চিংড়ি – Prawn: Most people consider shrimps to be small and prawns to be large. But in fact আপনি can get large shrimps and small prawns too. They are from the same order (Decapoda) but different suborders – prawns are Dendrobranchiata and shrimps are Pleocyemata. The way to tell whether আপনি are eating a চিংড়ি অথবা a চিংড়ি আপনি need to look beneath the tail. On a চিংড়ি the সেকেন্ড plate overlaps the first and third plates – on a চিংড়ি only the সেকেন্ড plate overlaps the third.

5. নৌকা – Ship: Basically ships are bigger. Boats weight less than 500 tons while ships weigh আরো than 500 tons. A ship can carry boats (such as lifeboats) and ships always require a license from an authority to sail. Some boats need a license but most don’t (fishing boats, for example). It should be noted that the definition does vary from region to region.

6. কুম্ভীর – Alligator: Both crocodiles and alligators are from the Crocodilia family and both thrive in freshwater. But there the difference ends. Alligators are black and crocodiles are জলপাই brown. Alligators have u-shaped snouts to make it easier to crush their prey while crocodiles have a v-shaped snout to make it easier to catch fish.

7. Dracula – Vampire: Dracula is a vampire – a creature that exists দ্বারা drinking human blood. ভ্যাম্পায়ার have existed as part of human society for millennia whereas Dracula is the embodiment of Prince Vlad Tepes “the impaler” from Romania. The term Dracula comes from Vlad’s patronymic name “Dracula” – his full শিরোনাম was Vlad III Dracula, Prince of Wallachia and he was born in 1431 – dying in 1476.

8. কোকাকোলা – Pepsi: Pepsi cola – originally known as “Brad’s Drink” was invented in North Carolina in 1893. Its new name comes from the enzyme “pepsin” which is found in it. The main differences are that pepsi is sweeter, has a stronger cola flavor – but otherwise their ingredients are essentially the same. কোকাকোলা is fruitier and fizzier.

9. Great Britain – United Kingdom: Great Britain is the geographical area comprising England, Scotland, and Wales (Britain on its own – a term seldom used – refers to the political entity of England and Wales only). The United Kingdom is what আপনি get when আপনি combine Great Britain with Northern Ireland.

10. Speed – Velocity: To put is in its most basic sense: speed is distance / time; velocity is displacement / time – in other words velocity also takes into consideration the direction of the object being measured.

11. Mass – Weight: Mass tells us how much matter an object contains. Weight tells us the pull of gravity on an object. Mass remains the same wherever আপনি weigh it – the Moon, Earth, Jupiter. The weight changes at least location because there is a different amount of gravity pull on the object.

12. Sex – Gender: Sex is determined দ্বারা anatomy but gender is determined দ্বারা sexual identity – it is those characteristics দ্বারা which we tell the sexes apart (not including genitals) – this is a socially constructed concept. So পরবর্তি time আপনি see a toilet with “Males” অথবা “Females” on the door – beware – those toilets have sex organs!

13. Affect – Effect: Affect is a verb (unless আপনি are a psychologist in which case it refers to feelings and desires) and effect is a noun. আপনি affect an effect. When আপনি affect something, it creates an effect. John built (affect – verb) a house (effect – noun).

14. Weather – Climate: Weather is here today and gone tomorrow – it is the দিন to দিন situation of the atmosphere in a particular place অথবা time. For example: the weather today is humid and warm. Climate, on the other hand, is the pattern of weather that a particular region experiences over a long period of time. For example the summer climate refers to the weather through the whole three মাস summer period.

15. HIV – AIDS: HIV is a virus that weakens the human immune system over time. With proper treatment it can remain stable for many years without worsening. If, however, it is untreated, it can develop to a highly advanced level in which case it is called AIDS. AIDS is a syndrome because virtually any disease অথবা infection can cause fatal harm to a person because they are no longer able to fight off the illness.

16. College – University: In the US a college and বিশ্ববিদ্যালয় are essentially the same thing – they are interchangeable terms – they are both institutions which give degrees. In commonwealth nations the terms are আরো confused. A college can be a school affiliated with a বিশ্ববিদ্যালয় – the college prepares the student for the degree and the বিশ্ববিদ্যালয় with which it is affiliated gives the degree. But some “colleges” in the UK are really secondary schools (such as a high school in the UK) – one famous example is Eton College. And then in Australia and New Zealand, “college” means high school.

17. Hurricane – Cyclone: All hurricanes are cyclones but only cyclones over 74mph are hurricanes. In addition to that a cyclone hits in the Indian Ocean অথবা Southwestern Pacific Ocean. A hurricane hits in the Atlantic Ocean and the Eastern Pacific.

18. প্রজাপতি – Moth: প্রজাপতি are seen in the দিন whilst moths are seen at night. প্রজাপতি antennas are knobbed, long, and thin but পোকা antennas are short and hairy. When sleeping a প্রজাপতি closes its wings but a পোকা doesn’t.

19. Pill – Tablet: All pills are tablets but not all tablets are pills. Properly speaking a pill is round shaped and a tablet is anything else.

20. Race – Ethnicity: Race is the major physical divisions between humans which have unique characteristics. Ethnicity is the cultural tradition. আপনি can’t say your ethnicity is black – that is an aspect of your race. Ethnicity contains the customs and traditions from a region. Race cannot be changed – ethnicity can through learning new customs and replacing old.