Business correspondence
13 words

attachment
also has 2 other senses
B1

carriage
also has 2 other senses
C1

parent
also has another sense
B2

receipt
also has another sense
C1

deadline
B1

delay
also has 2 other senses
B2

deliver
also has 2 other senses
B1

email
also has another sense
A1

envelope
A2

parcel
B1

referee
also has 2 other senses
C1

ship
also has another sense
B1

signature
also has another sense
B1