Modifier
The describer in a sentence.
EX: She quickly wrote down her thoughts; quickly is the modifier
Modifier
Can be removed from a sentence without affecting the overall meaning and grammar.
EX: She wrote down her thoughts; makes sense without the modifier quickly
Adjectives
Modify nouns and pronouns
Adverbs
Modify verbs, adjectives, or other adverbs
Where to place modifiers
As close to the word or phrase they are modifying as possible.