Use the commonest shortest words where you can so everyone knows what you mean. A few examples.
- additional (replace with ‘extra’)
- advise (tell)
- commence (start)
- complete (fill in)
- comply with (keep to)
- consequently (so)
- ensure (make sure)
- forward (send)
- in excess of (more than)
- particulars (details)
- per annum (a year)
- prior to (before)
- purchase (buy)
- regarding (about)
- terminate (end, finish)
