...as a brick.....or as thick as two short planks
Mathematical phrase is a number phrase which does not express a complete thought.
'Tooth and nail' is the complete phrase.
An absolute phrase is a phrase that when you add the words Was or Were you can get a complete thought out sentence.
As thick as thieves
no,because not all phrase has not a complete thought.
of the people
parrot
daisy
Lisa wants to go quickly.
The phrase "through thick and thin" means being supportive and loyal in all circumstances, both good and bad. It signifies a commitment to stand by someone regardless of challenges or obstacles that come their way.
"of the mantle" is the prepositional phrase.
"They can" is a complete sentence, not a phrase.