by degrees

US /baɪ dɪˈɡriːz/
UK /baɪ dɪˈɡriːz/
"by degrees" picture
1.

gradually; little by little

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The patient's health improved by degrees.
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They learned the new language by degrees.
:
degreemaster's degreebachelor's degreeassociate's degreehonors degreebachelor’s degreemaster’s degree