100+ Vocabulary Words for 2nd Grade

In second grade, students grow into more confident readers and writers. A strong vocabulary helps them read with fluency, understand stories and nonfiction, and express ideas in writing. This list of 2nd grade vocabulary words includes high-frequency words, simple prefixes and suffixes, academic terms, and themed words for real-world connections.

These word groups are ideal for classroom instruction, reading practice, or home review.

High-Frequency 2nd Grade Vocabulary Words

These are some of the most common words second graders will see in books and writing assignments:

• around

• because

• before

• every

• first

• laugh

• move

• pretty

• show

• thank

2nd Grade Vocabulary with Simple Prefixes

These words include common prefixes like re-, un-, and pre- that help students understand how word meanings change:

• refill

• unwrap

• redo

• untie

• repaint

• unpack

• recheck

• unclip

• preview

• retell

2nd Grade Vocabulary with Simple Suffixes

Students begin adding -ed, -ing, and -ly to base words to describe actions and qualities:

• played

• helping

• slowly

• cleaned

• jumping

• baking

• nicely

• opened

• shouting

• dancing

Compound Words for 2nd Graders

Second graders love discovering how two words come together to form a new word:

• backpack

• rainbow

• football

• jellyfish

• popcorn

• doghouse

• shoebox

• mailbox

• pancake

• playground

Contractions in 2nd Grade Vocabulary

Contractions help students read conversations and understand informal writing:

• isn’t

• wasn’t

• you’ll

• he’ll

• she’s

• I’ve

• that’s

• we’re

• it’s

• couldn’t

Words with Long and Short Vowel Patterns

These are great for phonics and spelling practice:

Long vowel examples:

• rose

• kite

• leaf

• rope

• mule

Short vowel examples:

• net

• pig

• rug

• hat

• log

Words with Silent Letters

Second graders are introduced to silent letters in commonly seen words:

• ghost

• knot

• write

• lamb

• climb

• hour

• sign

• honest

• debt

• wrong

Irregular Plural Nouns

These plural forms break the usual -s or -es rule and must be memorized:

• mice

• children

• people

• feet

• teeth

• deer

• sheep

• moose

Vocabulary for Reading and Storytelling

These words help second graders talk about books, characters, and story structure:

• author

• title

• setting

• chapter

• plot

• fiction

• nonfiction

• page

• cover

• idea

Math Vocabulary for 2nd Grade

These simple math words are used during lessons and problem-solving:

• plus

• minus

• equal

• count

• pattern

• chart

• number

• shape

• total

• compare

Science Vocabulary for 2nd Grade

Introduce key science concepts with these beginner-friendly words:

• air

• bug

• plant

• rock

• water

• grow

• light

• seed

• hill

• cold

Social Studies Vocabulary for 2nd Grade

These terms help second graders learn about their world and community:

• family

• neighbor

• job

• school

• town

• vote

• group

• leader

• help

• rule

Seasonal and Fun Words for 2nd Graders

Make vocabulary relatable with real-life and holiday-themed words:

• apple

• snowman

• picnic

• turkey

• flag

• schoolbus

• sunshine

• boots

• parade

• egg

Tips for Teaching 2nd Grade Vocabulary

• Use visuals: Match words with pictures to reinforce meaning.

• Play games: Word bingo, charades, and memory cards make practice fun.

• Read aloud: Model how to use new words in context.

• Write together: Encourage students to use new words in short stories or journal entries.

Building a strong vocabulary in second grade sets the stage for reading comprehension, writing fluency, and classroom confidence. By grouping words by theme and practicing regularly, students will expand their word knowledge and grow as readers and thinkers.