ask, investigate, verify, twist (rope)
糺 centers on the idea of straightening or untangling something: asking questions to clarify, investigating to find the truth, verifying facts, or literally twisting rope to make it orderly.
糺 combines 糸 (thread) with 乚, a shape associated with bending or hooking. The character likely expresses the idea of twisting or straightening thread, which extended to abstract notions of investigating and verifying.
The left side is thread 糸, and the right side looks like a hook or bent tool. Picture using a hook to twist and straighten tangled thread, just as you would untangle a confusing situation by asking questions and verifying facts.
For キュウ, imagine a curious investigator asking 'Q' (cue) after 'Q' to untangle a mystery: Q -> キュウ, and the thread of clues is twisted but eventually straightened.
to ascertain; to confirm; to verify; to make sure of