4th Grade Language Review: The /w/ Sound & Plural Nouns Ending in -o

Vocabulary flashcards covering the four spelling patterns for the /w/ sound and rules for forming plural nouns ending in -o.

Pattern w (/w/ sound)

The spelling pattern where the letter w spells /w/, as in the example word water.

Pattern wh (/w/ sound)

The spelling pattern where the letters wh can spell /w/, as in the example word whale.

Pattern u (after q)

The spelling pattern where after q, the u helps make the /kw/ sound, as in the example word quick.

Pattern o (/w/ sound)

The spelling pattern where in a few words, o spells the /w/ sound, as in the example word one.

Plural Noun

A noun that names more than one person, place, thing, or idea.

Plural Nouns Ending in -o (Add -s pattern)

The pattern where many nouns ending in -o add -s to form the plural (e.g., radio -> radios; piano -> pianos; photo -> photos).

Plural Nouns Ending in -o (Add -es pattern)

The pattern where some nouns ending in -o add -es to form the plural (e.g., potato -> potatoes; tomato -> tomatoes; hero -> heroes).

Plural Nouns Ending in -o (Dictionary/Style variation)

The pattern where some words ending in -o may vary by dictionary or style, requiring you to check a dictionary when unsure.

Plural of tomato

tomatoes

Plural of piano

pianos

Plural of hero

heroes

Plural of photo

photos

Plural of potato

potatoes

Plural of radio

radios