Correct
春分
/ chūnfēn /
Strokes
Definition
Chunfen or Spring Equinox, 4th of the 24 solar terms 二十四节气 21st March-4th April
Example
As a Noun
Spring Equinox; Vernal Equinox ［beginning of the 4th of the 24 solar terms］
As a Noun
Spring Equinox Day ［falling on Mar 20 or 21］