What context can I use each word in?
Learn when and how to use these words with these examples!
stratum
Example
The fossil was found in the lower stratum of the rock formation. [stratum: noun]
Example
The upper stratum of society enjoys privileges that are not available to those in lower strata. [strata: plural noun]
tier
Example
We were seated in the top tier of the stadium for the concert. [tier: noun]
Example
She was promoted to the executive tier of the company. [tier: noun]
Example
The product is of high quality and belongs in the top tier of its category. [tier: adjective]
Good things to know
Which word is more common?
Tier is more commonly used than stratum in everyday language. Tier is versatile and covers a wide range of contexts, while stratum is less common and often used in technical or specialized fields.
What’s the difference in the tone of formality between stratum and tier?
Both stratum and tier can be used in formal or technical contexts, but stratum may be perceived as more formal or specialized due to its Latin origin and association with scientific fields.