apologize, thank, refuse
謝 centers on using words to acknowledge a debt or correct a misstep: apologizing, thanking, or politely refusing.
謝 combines 言 (speech) with 射, which likely contributes the sound and may suggest releasing or discharging, as in releasing words of apology or thanks.
Words 言 are shot 射 out to make things right: apologizing, thanking, or refusing.
For シャ, imagine shooting an apology arrow while saying 'shah!' — the sharp sound cues シャ as you release the words.
thanks; gratitude; appreciation; thankfulness
to apologize (apologise)
apology
metabolism
consolation
reward; honorarium; remuneration
renewal; replacement; regeneration; rejuvenation
apology
gratitude; thanks
carnival (festival held before Lent)
Carnaval (Schumann); Carnival
(expression of) gratitude
earnest apology; humble apology; apologizing profusely
words of thanks; words of gratitude; acknowledgements
monthly tuition fee
Labor Thanksgiving Day (national holiday; November 23)
refusal; declining
customer appreciation day (retail sales day)
energy metabolism
relative metabolic rate