This room has to much mass. Mass is a synonym for density. I guess
The density of most woods is lighter than water, so they float. The mass of an object divided by its volume is its density.
The government conducts a census every ten years to gather data on the population and housing in the country.
The government decided to enumerate the population. (Its called a census.)
I am not writing a sentence using that word.
The density of a substance can be measured in a laboratory.
I can give you a sentence using the word galaxy.
a sentence using the word endotracheal
This is a sentence using the word aviator.
The king's subjugation of the neighboring tribes led to a rebellion among the people.
I am saying a sentence using the word collagen.
This is a sentence using the word monomer. :P