No — the common abbreviation of “hello” is “hi” or sometimes “hey,” not “’allo.” “Hallo”/“hullo” are older variant spellings related to “hello,” and “allô” is a greeting used in some languages such as French.

Quick Scoop

If you want a casual shortened version of hello , use:

  • Hi
  • Hey
  • Hello itself, if you want to stay neutral

“’allo” is more of a stylized or dialect-like rendering of the sound, not a standard abbreviation in modern English.

Plain answer

  • Standard: hello.
  • Short casual: hi.
  • Stylized/dialect spelling: ’allo or hallo, depending on tone and context.

Example

  • Formal: “Hello, how are you?”
  • Casual: “Hi, how are you?”
  • Stylized: “’Allo, mate!”

If you want, I can also give you the difference between hello, hi, hey, hallo, and ’allo in one simple table.