anniversaries

i am slightly confused right now - my friend has just said to me that it is her 6 month anniversary of being with her bf ...... how the hell do you get a 6 month anniversary????

n., pl., -ries.

1. The annually recurring date of a past event, especially one of historical, national, or personal importance: a wedding anniversary; the anniversary of the founding of Rome.
2. A celebration commemorating such a date.

[Middle English anniversarie, from Medieval Latin (diēs) anniversāria, anniversary (day), from Latin, feminine ofanniversārius, returning yearly : annus, year + versus, past participle of vertere, to turn.]

so an anniversary is yearly - you can't have a 6 month anniversary! trust a woman to alter it to suit herself though ....... it doesn't matter so long as they get gifts after all!!!!