I hope you will benefit from them as I did
1. Altogether & All toghether
Say: We went to the cinema all together
Don’t say : we went to the cinema altogether
NOTE: Altogether , as one word means completely. All together is the opposite of separately
***
2. Alone & Lonely
Say: She feels lonely after her husband’s death
Don’t say:She feels Alone after her husband’s death ……
NOTE: Lonely means feeling unhappy and isolated, but Alone means by oneself [without others or help]
***
3. Why and cause
Say:This is why /the reason why I don’t like him
Don’t Say: this is the cause why I dont like him
NOTE: we don’t use why with cause
***
4.Older & Elder
Say: my Elder brother is an engineer
Don’t say: My older brother is an engineer
NOTE: elder and eldest are applied to members of the same family
***
5. Prize & Price
Say: The price of this car is 10000 Pounds
Don’t Say: The prize of this car is 10000 Pounds
NOTE: Prize is a reward , but price is the money you pay to buy something
***
6. Rob & steal
Say: He stole our money
Don’t Say: He Robbed our money
NOTE: Steal is followed by the thing stolen or taken, but rob is followed by the person or the place
***
7. Pieces and parts
Say: We have lots of pieces of furniture in our house
Don’t Say: We have lots of parts of furniture in our house
NOTE: Parts of furniture would mean that the furniture had been
broken but piece is a fragment
such topic ,which we really need it
I hope it will be of a great benefit to the members
It’s a very important topic
كتبت بواسطة Touraya 
It’s a very important topic
I am glad to hear your opinion
easily understood
thanx Oum Rayan
you are welcome