• 丷(two dots; two heads)
• 十(ten; cross)

A solitary spear with two sharp points and a cross-shaped handle represents the meaning of single or alone.

• 于(at; in (pictographic — curved stroke representing breath escaping))

Breath curves and escapes from a person, meaning 'at' or 'in' a place.

• 丷(two dots; two heads)
• 十(ten; cross)

A solitary spear with two sharp points and a cross-shaped handle represents the meaning of single or alone.

• 于(at; in (pictographic — curved stroke representing breath escaping))

Breath curves and escapes from a person, meaning 'at' or 'in' a place.