What is the suffix added to word alter its meaning?

There isn't a single suffix that automatically alters the meaning of a word. Instead, suffixes often change the grammatical function of a word, like turning a noun into an adjective or verb.

Here's an example:

* "Happy" is an adjective.

* "Happiness" is a noun.

Here, the suffix "-ness" changed the word from an adjective to a noun.

However, some suffixes can alter the meaning slightly:

* "-able" often implies something can be done: "break" (verb) becomes "breakable" (adjective, able to be broken).

* "-er" can indicate a person who does something: "teach" (verb) becomes "teacher" (noun).

Ultimately, the meaning of a word with a suffix is determined by how the suffix interacts with the base word.

Let me know if you'd like to explore specific suffixes and their effects on word meanings!