5th Grade Vocabulary Words - List 10

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Word Definition Practice Sentence Synonyms Antonyms Part of Speech Description
effectively In a manner that achieves a desired outcome. They were able to resolve the problem effectively. productively, definitely, efficiently Adverb
pronoun A word that replaces a noun in a sentence. We use the pronoun "it" to refer to the A.I. Noun
organized Arranged in an orderly way. She organized the clothes in her closet by color. coordinated, standardized, classified Adjective
mortal Liable to cause death. He was in mortal danger if he didn't get to the hospital soon. fatal, lethal, dire Adjective
prism A transparent object used for dispersing light into a spectrum. The prism cast rainbows on the wall. crystal, gem Noun
slowly At a slow speed. He was driving so slowly all the other cars were passing him. gradually, haltingly, lazily quickly Adverb
batty Mentally unstable. The dog goes batty when someone knocks on the door. crazy, foolish, insane sane Adjective
chugged Swallowed a drink in large gulps. I was so thirsty I chugged the whole bottle of water in less than a minute. drink quickly Verb
reflect Give back sound or light without absorbing it. Look how the lights reflect and sparkle in the water. echo, mirror, copy Verb
decayed Having rotted or deteriorated. There's a layer of decayed leaves under the snow. withered, rotten, decomposed Adjective

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