appear out of thin air
To appear out of thin air is to appear suddenly and unexpectedly as if out of nowhere.
Example: She expects money to just appear out of thin air.
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fade away
become less intense; become quieter; become weaker until it can't be perceived
Example: The sun's warmth fades away very quickly on a winter evening.
seen
Seen is the past participle of the irregular verb see. Follow the link below to find out more and to listen to some examples.
more information: see
effect
Be careful not to confuse effect with affect. Follow the link to find out more.
more information: effect & affect
in between
between two states
Example: He's neither tall nor short. He's in between.
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