One simile I have for you is, ''The rock was as big as an elephant ''.
As steady as a rock
As hard as a brick
as loud as a dinosaur
it is as good as gold
As hard as nails (usually about a person) As hard as diamond As hard as rock
As steady as a rock
As hard as a brick
Your teacher is as awesome as a rock star.
wood is like a rock solid and sturdy
as loud as a dinosaur
The simile for "as firm as a" is often completed with "rock." This phrase conveys a sense of steadfastness and reliability, suggesting that something is unyielding and solid, much like a rock. Other variations can include comparisons like "as firm as a tree" or "as firm as a mountain," but "as firm as a rock" is the most common.
it is as good as gold
personification
Some words that use the root 'firm' are:affirmaffirmativeconfirmconfirmationfirmlyinfirminfirmaryinfirmityreaffirmreaffirmationreconfirmunconfirmed
A simile.
A metaphor
The rock is changed by the river, like a person is changed by life experiences.