In other words

At eighteen months, C still doesn't have too many words, but he communicates very clearly all the time!

Words:

No! (and he says it with attitude and a pointed finger!)

This

Mama

(He says No, this, and Mama consistently, 

the rest of these he says sometimes, or has to be reminded that he knows them.)

Choo-choo

Hey

Moo: meaning cow

Ooo ooo:  meaning owl

Bye-bye

Ta Ta Ta: Pat, pat, pat

Signs:  

Cracker (for a while, everything was "cracker!")

More

Water

Food

Pacifier

Please

Thank you

Hat

Brush Teeth

Outside

All done / Finished

Book

Leonard

Meat

Medicine

Fruit

Owl

Dog

Daddy

Shoe

Sock

Diaper

Bread

Grapes

And a few of the words H uses/misuses:

Porcupine: pineapple

Coconut:  Walnut

Chicken Sauce:  Ketchup

Chuther:  Each other

Monkey Bar:  his favorite monkey toy

'Mercial Show:  a TV show (not a Netflix show or DVD, one with 'Mercials.)

Flashlight Bugs:  Lightning bugs 

My throat hurts in my tummy:  My tummy hurts

Super market: Lamar Park

Celebration Army:  Salvation Army

It tickles:  it tastes good

That's gooey:  that's silly

Don't let the bugs bite you:  Don't let the bed bugs bite

And he drops the first syllable of most words.