big first for a baby crossword clue

 The crossword clue "big first for a baby" can be first steps. Taking their first steps is a major milestone for babies. It is a sign that they are developing physically and mentally, and it is a moment that parents will never forget.

Here are some other possible answers for the crossword clue "big first for a baby":

FIRST STEPS

FIRST WORDS

FIRST LAUGH

FIRST ROLLOVER

FIRST CROWN TEETHING

I hope this helps!