concerning, settle, take position, depart, study, per
就 centers on moving toward and settling into a role or state: taking a position, settling into a job, or departing to start something. The meanings 'concerning' and 'study' extend from the idea of directing oneself toward a subject or task.
就 combines 京 (a high mound or capital) with 尤 (a variant of 尢, suggesting a bent or leaning figure). The original idea may have been a person approaching or settling at a high place, but the exact historical development is uncertain.
Picture a person (尤, like a bent figure) approaching a tall capital building (京) to take up a new position. They settle in and begin their study of the new role.
For シュウ, imagine settling into a new job and receiving your first pair of shoes as a uniform: shoes -> シュウ, and you take your position.
finding employment; getting a job
assumption (of office); taking up (a post); inauguration; installation
to take (seat, position, course, office, etc.); to assume; to be hired; to be employed
job hunting; job searching
going to bed; retiring (for the night)
employment; starting work
working; being employed; being hired
fulfillment; fulfilment; realization; realisation; completion
entering school; school attendance
to install (a king, emperor, etc.)
entering service (on a route; of a plane or ship); going into commission; being in service
being placed on duty
in line with this; therefore; consequently; so; such being the case; in that regard; in this connection
leaving or staying
working in agriculture
especially; above all; particularly; among other things
job-hunting via a social networking service (e.g. Facebook)
unstable employment
not enrolling for compulsory schooling
illegal employment; illegal work; unauthorized labor