del.

• abbr.
  • delegate
  • delegation
  • delete
  • deletion
  • delineavit[拉丁语](某某人)画(画家在画作上的正式署名)
  • deliver
  • delivery

Del.

• abbr.
  • Delaware
  • Delhi

del[del]

• n.【数学】侧三角形[符号▽,参较 gradient,Laplace operator]