Is this a compound word?

rainbow rain + bow

Friday

cowboy cow + boy

bathtub bath + tub

ice cream

sunny

jump rope

bedroom bed + room

cheesecake cheese + cake

ladybug lady + bug

sunshine sun + shine

ran

Monday

looking

beautiful

airplane air + plane

strawberry straw + berry

backpack back + pack

basketball basket + ball

underline under + line

starfish star + fish

Wonder Woman

spaceship space + ship

cupcake cup + cake

goldfish gold + fish

toothbrush tooth + brush

butterfly butter + fly

scary

run

thunderstorm thunder + storm

rainstorm rain + storm

tornado

blizzard

football foot + ball

hotdog hot + dog

firefighter fire + fighter

jellyfish jelly + fish

pancake pan + cake

happy

station

Halloween

raincoat rain + coat