academic
asleep
board
book
bored
boring
burnout
class
classroom
clock
deadline
education
exam
exhausted
fatigue
hourglass
late
learning
lesson
man
missing
nap
napping
notes
preparation
preparing
reading
sand
sandglass
school
science
sleep
sleeping
sleepy
student
study
studying
taking
textbook
time
timer
tired
trainee
training
university
white
whiteboard
yawn
yawning