Which word can be added to first- to form a compound adjective

class

To find which word can be added to "first-" to form a compound adjective, you can start by identifying adjectives that can be combined with "first-" to modify a noun.

One possible word that can be added to "first-" is "class." When combined, they form the compound adjective "first-class." This adjective is commonly used to describe something of the highest quality or rank.

Another possible word that can be added to "first-" is "rate." When combined, they form the compound adjective "first-rate." This adjective is commonly used to describe something of excellent or superior quality.

Therefore, the word that can be added to "first-" to form a compound adjective can be "class" or "rate," resulting in "first-class" or "first-rate."

To form a compound adjective, you can add different words to "first-" such as:

- First-class
- First-rate
- First-hand
- First-born
- First-time
- First-year
- First-generation

Adding different words to "first-" allows you to create compound adjectives that describe something related to being the first in a particular aspect or category.