tell, 10**24
抒 centers on expressing or drawing out something internal: telling thoughts, or scooping and pouring out liquid. The large-number sense is a rare technical usage for 10^24, likely derived from the idea of pouring out a vast quantity.
抒 combines 扌 (hand) with 予, which likely contributes the sound. The character originally depicted the action of scooping or drawing out with the hand, later extended to expressing thoughts or words.
The hand radical 扌 beside 予 suggests a hand scooping something out. Imagine using your hand to scoop water from a well and pour it out, or using your hand to gesture while telling a story—both involve drawing something out.
For ジョ, picture a hand scooping out a joke from a box: joke -> ジョ, and the hand tells the joke by drawing it out.