mǎn​yuè

full moon

满月 (滿月) mǎn​yuè
full moon noun
the moon at the phase when its whole disc is illuminated

The full moon on the Mid-Autumn Festival is exceptionally bright.

one month old verb
reaching the milestone of one month of age for a baby, or the one-month mark since the start or implementation of something

My baby will be one month old next week.

Frequency

Movie subtitles
2.09 per million appears in 1% of films
Written text
2.45 per million

Sources

Definitions
CC-CEDICT