Opposite-Apposite | Commonly Confused Words

Opposite

/ˈɒpəzɪt /

Being completely different from something else; located on the other side or end

It was placed directly opposite them.'No, quite the opposite, in fact.However, in reality, the opposite is true.

/ˈæpəzət/

Something that is well-suited or appropriate for a particular situation.

The quote was apposite to the subject at hand.Her apposite comment brought clarity to the discussion.His apposite choice of words impressed everyone.

Opposite starts with opp- similar to oppose, which means to be against something, hence opposite means completely different.
Apposite starts with a similar sound to appropriate, which can help you remember that it means suitable or relevant.
Opposite is often used in the context of directionality, meaning facing across from something else.
Remember the double p in opposite as akin to pair, which you face across from.
The a in apposite can remind you of being apt or fitting for the context in question.