U & V

U: umpire, umbrella, unicorn

V: van, valentine, vacuum

BOOKS:
Peter Spier's Rain
10 Valentine Friends, a holiday counting book, by Janet Shulman

UPDATED 2024:

U Words:

uncle

unicorn

unicycle

uniform

underwear

umbrella

universe

ukulele

usher

unlock

us

uphill

umpire
underline
unhappy

upset
ugly

united

uplift

ultimate

upbeat

understand

user-friendly

useful

utensil

BOOKS: 
The Ugly Duckling, by Alperin, Mara

Lily the Unicorn, by Clayton, Dallas

There's a Unicorn in your book, by  Fletcher, Tom

One Big Pair of Underwear, by Gehl, Laura

Underwear!, by Harney, Jenn

Something's Wrong, by John, Jory

Those Are Not My Underpants by Martin, Melissa

Animals in Underwear, by Parr, Todd (BB)

Attack of the Underwear Dragon, by Rothman, Scott

The Underpants!, by Sauer, Tammy

Unicorn thinks he's pretty great, by Shea, Bob

Polar Bear's Underwear, by Tupera, Tupera

Kevin the Unicorn: It's not all rainbows, by Von Innerebn, Jessika

How to Catch a Unicorn, by Wallace, Adam

Ugly Pie, by Wheeler, Lisa

A Unicorn named Sparkle, by Young, Amy

V Words:

vase

vegetable

van

volcano

violet

velvet

veterinarian/vet

vulture

vanilla

violin

vacuum

vote

visit(or)

vowels

vacation

vein

Valentine

video

village

virus

valley

valuable

vine

vanish

BOOKS:

Eating the alphabet: Fruits & Vegetables from A to Z

Ask a Veterinarian: Meow, woof or moo -- there's a doctor for you by Pajaro, Rosie (BB)

If I had Your Vote, by Cat in the Hat (E)

A Vote for Susanna: The first woman mayor, by Greenwald, Karen

When Lola Visits, by Sterling, Michelle

https://preschoolmom.com/preschool-crafts/alphabet-crafts/