Move data from every other row to columns
 

Hi - Using Excel 2010.
I have several long lists (each is 600+) of vocabularywords & definitions and need to move the definitions (even-numbered rows)into the next column beside the word it defines. For example:

A1 = adjective
A2 = a word used to modify a noun or a pronoun
A3 = compound
A4 = two or more words used together as a single word
A5 = interrogative
A6 = asks a question
A7 = narrative
A8 = tells a story

Should end up as:

A1 = adjective
B1 = a word used to modify a noun or a pronoun
Row 2 = blank
A3 = compound
B3 = two or more words used together as a single word
Row 4 = blank
A5 = interrogative
B5 = asks a question
Row 6 = blank
A7 = narrative
B7 = tells a story

Paste Special-Transpose doesn't help - it just puts all the data in hundreds of columns left to right.
Any advice?

Thanks!