Free Printable

-UG Family Words for Kids, Printable PDF

-UG Family words are words that share the same ending spelling pattern, such as bug, chug, drug. Word families help children recognize predictable letter combinations, building decoding speed and confidence in Science of Reading aligned instruction.

Every word list on this page is powered by LUCA's LUCADictionary, which contains 763,000+ grapheme-phoneme mappings built on U.S. Patent No. 12,394,332 B2 and validated by NSF SBIR funding (3% acceptance rate). LUCA teaches through LUCALabs, its three-phase reading cycle: Listen, Analyze, and Build.

This free printable includes 15 decodable words and 12 practice sentences in a print-ready, Science of Reading aligned format.

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Last updated: 2026-04-20

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Enter your email and we will deliver the complete -UG Family resource pack in LUCA's print-ready branded format. Includes all 15 decodable words, 12 practice sentences, and teaching tips aligned with the Science of Reading. The PDF also works as a classroom handout or take-home resource for parents.

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What Is Inside Your -UG Family PDF?

-UG Family Words for Kids

Science of Reading Aligned · Print-Ready

LUCA

The Intelligent Reading Specialist

Word List (15 words)

bug

chug

drug

dug

hug

jug

lug

mug

plug

rug

slug

smug

snug

thug

tug

Practice Sentences

bug: The bug sat on the green leaf.

hug: Mom gave Ben a big warm hug.

mug: The mug is full of warm milk.

+9 more sentences in the full PDF

How Should I Use This -UG Family Printable?

Research from the National Reading Panel shows that systematic phonics instruction is most effective when children practice decoding in short, focused sessions. Follow these steps to get the most out of your -ug family printable.

Stretch it

Slowly elongate each sound in the word, then blend together.

Tap it

Tap a finger for each sound while reading aloud.

Build it

Use letter tiles or write the letters to construct each word.

Find it

Highlight every -UG Family word on this page before reading.

Why Are LUCA Word Lists Different?

LUCA is built on research validated by the International Dyslexia Association's standards for structured literacy. Every word list reflects phoneme-level precision that generic resources cannot match.

Phoneme-Level Listening

LUCA's SoundScout captures individual phoneme-level speech in real time, identifying exactly which vowel sound or blend is causing difficulty rather than simply marking a whole word as incorrect.

763,000+ Mappings

LUCADictionary powers every word list with one of the most comprehensive grapheme-phoneme databases in K-12 education, ensuring every word is properly sequenced and decodable at the target skill level.

Personalized Stories

StoryGen creates decodable stories targeting your child's specific phonics gaps, so every story provides meaningful practice. No two readers get the same content because LUCA adapts to each child.

What Results Can I Expect from LUCA?

+17.2WPM

Average fluency gain

72%

Reached mastery threshold

763K+

Grapheme-phoneme mappings

Based on 2025-26 pilot data across K-5 classrooms. Powered by LUCALabs.

Frequently Asked Questions About -UG Family Words

-UG Family words are words that follow the word families phonics pattern, including bug, chug, drug, dug, and more. This printable covers 15 decodable words that are aligned with the Science of Reading. LUCA's LUCADictionary contains 763,000+ grapheme-phoneme mappings that power every word list on this site.

Most children encounter -ug family words in kindergarten through second grade, depending on their reading level and instructional sequence. In the Science of Reading framework, word families patterns are taught through explicit, systematic phonics instruction. LUCA's Assessment Intelligence identifies each child's exact skill level so practice starts at the right place.

Start with five to ten words per session and keep practice to 10 to 15 minutes. Have your child point to each letter, say its sound, then blend all sounds together. After reading the word, ask them to use it in a sentence. This printable includes 12 decodable practice sentences you can use together. For personalized practice, try LUCA's Playground at luca.ai/playground.

Yes, completely free with no strings attached. This -UG Family printable PDF includes 15 decodable words, 12 practice sentences, and teaching tips, all in LUCA's branded, print-ready format. The word lists are powered by LUCADictionary's 763,000+ grapheme-phoneme mappings and validated by NSF SBIR funded research.

LUCA teaches -ug family words through LUCALabs, its three-phase reading cycle: Listen, Analyze, and Build. SoundScout captures phoneme-level speech in real time, identifying exactly which sounds a child is struggling with. Then StoryGen creates personalized decodable stories targeting those specific gaps. No two readers get the same content because LUCA adapts to each child's needs.