what could be sillier?]

'
Common: single quote; quote; . Rare: prime;
glitch; tick; irk; pop; [spark]; mark>; .

()
Common: left/right paren; left/right parenthesis; left/right;
paren/thesis; open/close paren; open/close; open/close
parenthesis; left/right banana. Rare: so/al-ready;
lparen/rparen; ; open/close round
bracket, parenthisey/unparenthisey; [wax/wane]; left/right
ear.

*
Common: star; [{splat}]; . Rare: wildcard; gear;
dingle; mult; spider; aster; times; twinkle; glob (see
{glob}); {Nathan Hale}.

+
Common: ; add. Rare: cross; [intersection].

,
Common: . Rare: ; [tail].

-
Common: dash; ; . Rare: [worm]; option; dak;
bithorpe.