recollection, think, remember
憶 centers on the mind holding onto something: thinking about it, remembering it, or bringing it back as a recollection.
憶 combines the heart radical 忄 with 意, which likely contributes both sound and the idea of thought or mind, creating a character for remembering or thinking.
The heart 忄 holds onto thoughts 意: when your heart keeps an idea, you remember it.
For オク, picture an octopus wrapping its arms around a memory: octopus -> オク, and the octopus never forgets.
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memory; recollection; remembrance
guess; speculation; supposition
recollection; reminiscence
episodic memory
offline storage
online storage
cache storage
drum storage
buffer storage; buffer
bubble memory
file storage
programmable read-only memory; PROM
workstation dependent segment storage; WDSS
workstation independent segment storage; WISS
first memory
nonvolatile storage
main memory; main storage
main memory; primary storage
secondary memory
secondary storage