WHOLE CHARACTER
共gòng, gōng
shared; together; total; altogether
共 shows hands raising one thing together: 共同 'together' and 一共 'altogether'.
ZDIC: 象形 — an old picture of two hands raising one object together. The modern shape writes a cross-piece top over 八; the pieces are shown as visual aids without assigning which stroke was which hand.
TOP: THE RAISED CROSS-PIECE (VISUAL)
⺹
Notice this part of the shape; it is not taught as a separate word in this lesson.
In 共: top: the raised cross-piece (visual) Shown with its documented or clearly limited role.
BOTTOM: THE TWO STROKES UNDER IT (VISUAL)
八bā
eight
Standalone meaning is kept separate from its role in other characters.
In 共: bottom: the two strokes under it (visual) Shown with its documented or clearly limited role.