introvert

Words with a similar base: introvert

'introvert'

[introvert.n.01] as in: (psychology) a person who tends to shrink from social contacts and to become preoccupied with their own thoughts

'introvert'

[invaginate.v.02] as in: fold inwards

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Examples:
some organs can invaginate

'introvert'

[introvert.v.02] as in: turn inside

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Examples:
He introverted his feelings