alert
appointment
attention
beware
caution
chat
communicate
communication
connection
creative
deadline
diary
email
envelope
important
information
letter
mail
management
memo
memorandum
memory
message
notice
notification
notify
office
organized
organizer
place
plan
planner
postal
receive
remember
remind
reminder
research
schedule
sms
strategy
text
texting
unread
urgent
word
work