gather, meet, congregate, swarm, flock
集 centers on things coming together into one place: gathering, meeting, congregating, or swarming. The flock sense is a natural application of many individuals collecting as a group.
集 originally depicted birds (隹) gathering in a tree (木), conveying the idea of coming together. The modern form preserves this combination clearly.
Picture many birds (隹) flocking together on a single tree (木). They gather, meet, and swarm in one place.
For シュウ, imagine a shoe tree where birds gather: shoe -> シュウ, and the tree is covered with birds flocking together.
to collect; to assemble; to gather
editing; compilation
collection; compilation
recruitment; invitation; selection; advertisement; taking applications
to gather; to collect; to assemble
concentration (on a task); focusing one's attention
group; mass
feature (e.g. newspaper); special edition; report
meeting up; gathering; assembly
collecting; accumulating; gathering
gathering; meeting; assembly; collection; attendance
meeting; assembly; gathering; congregation; convention; rally
totalization; totalisation; aggregation; tally (e.g. of votes); adding up; summing up
settlement; village; community; town
putting together (e.g. opinions); gathering; collecting; aggregating; summarizing; integrating
to meet; to assemble; to congregate
call; summons; convening; convocation
accumulation
concentration (of efforts, forces, etc.); gathering together; regimentation; marshalling; mobilization
meeting; get-together (e.g. among friends)
crowding together; clustering together; close formation; swarm
complete works; complete collection; complete series
(large) compilation
convening; calling together (e.g. parliament); call-up (for military service)
collecting; gathering
money collection
poetry anthology; collection of poems; collected poems
crowd; community; group; herd; gathering; assembly
collection of waka poems; anthology
to gather; to crowd round; to swarm; to flock
collection of cargo (esp. produce, etc.); cargo booking
collection of haiku poems
collection (gathering) and distribution
centralized authoritarian rule; centralised authoritarian rule
collection of cases; collection of instances
photo book (esp. one featuring photos of female celebrities, models); photobook
mass recruitment
great gathering
mishmash; miscellany; medley; jumble; mixture; odds and ends
to gather together
editor (in publishing, etc.)
(powers of) concentration; ability to concentrate
local downpour; severe rain fall
gathering votes; garnering votes; pulling in votes