growing pains
US /ˈɡroʊɪŋ peɪnz/
UK /ˈɡroʊɪŋ peɪnz/
1.
pains in the limbs, especially the legs, experienced by children and thought to be associated with periods of rapid growth
:
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My daughter often complains of growing pains in her legs at night.
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The doctor assured us that his growing pains were normal and would pass.
2.
difficulties experienced in the early stages of a new project or enterprise
:
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The company is experiencing some growing pains as it expands into new markets.
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Implementing the new software came with its own set of growing pains.