calibri 11
To "paste without formatting" in Word strips the text you are pasting of all formatting. That means that it will be pasted in the default font and font size for Word, with no bolding, italics, underlining, font colours, highlighting, alternate fonts (apart from the default one for Word), font size, styles, etc that were present in the original text. It would appear exactly as if you were pasting it onto Notepad.
In Microsoft Word, the default typing mode uses 12-point type and the Times New Roman font. It is single-spaced with standard margins.
calibri font
11
calibri font
calibri
When you first launch Microsoft Office Word the default font size is 12.
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The selection of 12 as a default font size approximates text size on a normal paper page in the default page configuration. You can adjust the default template to display any size font you like.
The default typing mode of Microsoft Word is the Calibri body font size 11. The texts are usually aligned to the left while the spacing is usually single.
In those circumstances calabri would be called the default font.
The default font and size for Word 2007 is Calibri on 12.