If you are looking for just a few words, just doing multiple searches and measurements inside the same macro will do what you want. For example, the following will highlight in yellow all occurrences of "target1" and "target2"
Sub HighlightTargets()
'
Options.DefaultHighlightColorIndex = wdYellow
Selection.Find.ClearFormatting
Selection.Find.Replacement.ClearFormatting
Selection.Find.Replacement.Highlight = True
With Selection.Find
.Text = "target1"
.Replacement.Text = "target1"
.Forward = True
.Wrap = wdFindContinue
.Format = True
.MatchCase = False
.MatchWholeWord = False
.MatchWildcards = False
.MatchSoundsLike = False
.MatchAllWordForms = False
End With
Selection.Find.Execute Replace:=wdReplaceAll
' --------CODE TO HIGHLIGHT TARGET 1-------------------
Options.DefaultHighlightColorIndex = wdYellow
Selection.Find.ClearFormatting
Selection.Find.Replacement.ClearFormatting
Selection.Find.Replacement.Highlight = True
With Selection.Find
.Text = "target2"
.Replacement.Text = "target2"
.Forward = True
.Wrap = wdFindContinue
.Format = True
.MatchCase = False
.MatchWholeWord = False
.MatchWildcards = False
.MatchSoundsLike = False
.MatchAllWordForms = False
End With
Selection.Find.Execute Replace:=wdReplaceAll
End Sub
, .
Sub HighlightTargets2()
Dim range As range
Dim i As Long
Dim TargetList
TargetList = Array("target1", "target2", "target3") ' put list of terms to find here
For i = 0 To UBound(TargetList)
Set range = ActiveDocument.range
With range.Find
.Text = TargetList(i)
.Format = True
.MatchCase = True
.MatchWholeWord = False
.MatchWildcards = False
.MatchSoundsLike = False
.MatchAllWordForms = False
Do While .Execute(Forward:=True) = True
range.HighlightColorIndex = wdYellow
Loop
End With
Next
End Sub