1. I am on my own today.

2. I am loney today.
3. I am alone today.
4. I am lone today.
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Are they the same in meaning and grammatical?

1 answer

No, they do not all mean the same. "on my own" and "alone" could mean the same, if one is without company in some endeavor. "I am lone today" is not grammatical at all. And I assume #2 should be "lonely," not loney. Lonely means one longs for company but isn't finding it. "on my own" and "alone" are not necessarily bad things, "lonely" is.