Prepositions are words that show the relationship between a noun and something else in a sentence. Words like 'on', 'under' and 'inside', as well as phrases like 'next to', 'in front of', and 'on top ...

Enter into This is another example of prepositional tautology when it means going into a place like a house, room or car. The preposition ‘into’ is redundant and, indeed, useless in the expression.