The degree symbol or degree sign ° represents degrees of arc in geographic coordinate systems, hours in the medical field, degrees of temperature, alcohol proof, logarithmic film speed grades in photography, or diminished quality in musical harmony. The symbol consists of a small, raised circle, historically a zero glyph.

The square root symbol √ (also known as a radical sign, radical symbol, root symbol, radix, or surd) is often used in various documents. Microsoft Word offers convenient functionality for beautifully styling formulas.

While typing word documents, you usually separate words and sentences by pressing the Space key (also known as Spacebar), which inserts a regular general-purpose space character. However, some Microsoft Word documents may contain other kinds of spaces. You can discover those white-space symbols during editing the document but not on printing.

Saving your document in the same location with the same name is easy.

Numbered lists are similar to bulleted lists, except that instead of bullets, Word places sequential numbers in the front of the first line. This feature is handy because if you add a paragraph in the middle of a numbered list or rearrange the order of the paragraphs in a list, Word automatically renumbers the paragraphs so that they retain their sequence.

You can tell Word to start from any number you prefer, restart numbering from 1, or continue numbering.

The Open dialog box is your key to finding and retrieving Word documents.

Sometimes you need to skip parts of the document during a spell check. E.g., memos and letters can have headings and address blocks with names and other text that slow down the spell checker. Blocks of programming code or foreign words should not be checked for spelling too.
Also you may need to quote words and phrases with mistakes.

If you need to customize an existing numbered list (see how to create a numbered list) or apply your specifications to the number format, use the Define New Number Format dialog box.

Multilevel lists can contain numbered lists and bulleted lists. Automatic lists are a handy feature because if you add a paragraph in the middle of a numbered list or rearrange the order of the items in a list, Word automatically renumbers the paragraphs so that they retain their sequence.