Earth = the ball-shaped object that was live on, usually seen as a planet in space:  ‘The earth moves round the sun.’ ‘On the journey back to Earth, one of the spaceship’s computers failed.’

World = the ball-shaped object that we live on, usually seen in terms of people, countries, cities etc.: ‘Tuberculosis is still common in some parts of world.’

Planet= the ball-shaped object that we live on, usually seen in terms of the natural environment: This disaster could affect the whole planet.’ ‘The planet is gradually getting warmer.’

Edit = prepare a manuscript for publication or presentation by correcting or revising or refining: ‘The text should be properly edited before publication.’ ‘She edited a book on lexical semantics.’

Publish = put into print (a book, magazine, newspaper, etc.) for sale to the public: ‘The book was first published in 1987.’ ‘She published 25 books during her career.’

(i) (Used as countable nouns) every one considered individually or one by one: ‘Each person is mortal.’ (ii) To or from every one of two or more people: ‘They received $10 each.’

Each + singular noun: ‘Each child was given a balloon.’

Each of + plural noun/pronoun + singular verb: ‘Each of the three children was given a balloon.’

Drunken is rarely used to describe a person. It usually describes an action or event: ‘drunken driving’, ‘drunken laughter’, ‘a drunken brawl’, ‘a drunken orgy’, Drunken always comes before a noun. To describe a person, use drunk (NOT drunken): ‘I think he wanted to get us all drunk.’ ‘One of the students was always getting drunk.’ Drunk is not used before a noun.

(Be) in doubt about something (= the state of being unsure of something): ‘Is anyone in doubt about the job responsibility?’ ‘If you’re in any doubt about your child’s safety, consult a doctor.’

Unsure/uncertain (or not be sure/certain): ‘Whenever I’m not sure about the meaning of a word, I look into my dictionary.’

(i) Dispose of sth (= get rid of): ‘The quickest way to dispose of the rubbish is to burn it.’ (ii) Throw or cast away: ‘Put away your worries.’ (iii) Give, sell, or transfer to another: ‘She disposed of her parents’ possessions.’ (iv) Place or put in a particular order: ‘The books are disposed on the table.’

Discuss is a transitive verb and needs an object: ‘I’d like to discuss my problem with you.’ Discuss sth (WITHOUT about/on): ‘She simply refuses to discuss the matter.’

Discussion = a talk about something, especially one, which allows different points of view to be expressed: ‘After further discussion, the government has decided to dismiss the bill.’