Space
15 words

astronaut
A2

comet
B1

meteor
B2

moon
also has another sense
A1

planet
A2

rocket
also has 2 other senses
B2

satellite
also has another sense
B1

satellite
also has another sense
B2

sky
A1

space
also has 2 other senses
A2

star
also has 2 other senses
A1

sun
also has another sense
A1

telescope
also has another sense
B2

universe
also has another sense
B1

sunrise
B1