fasten, tie up, arrest, constrict
括 centers on binding things together tightly: fastening, tying up, or constricting. The arrest sense extends this idea to restraining a person.
括 combines 扌 (hand) with 舌, which likely contributes the sound and the idea of wrapping or enclosing, as the tongue wraps around food. Together they suggest a hand binding or fastening something.
A hand 扌 wraps around something like a tongue 舌 wraps around food, fastening it tightly.
For カツ, imagine tying a bundle so tightly that it cuts into the material: cuts -> カツ, and the hand fastens the cord with a sharp pull.
lumping together; summing up; bundle; lump; batch
brackets; parentheses
inclusion; complete coverage; comprehensiveness
summarization; summary; generalization
unification; bringing together; generalization
constriction; narrow part (in middle)
knot; tying
to tie up; to tie together; to bind; to bundle; to fasten
sphincter (muscle); constrictor
lump-sum payment; paying the entire sum in one transaction
summary; generalization; generalisation
less-than mark; left angle bracket
square brackets; Japanese-style quotation marks
one bunch; one bundle; one lot
lumping together; putting all together
batch processing
bulk sale; buying and selling in bulk
batch conversion
batch mode; batch style
batch mode