Had a streak of bad luck.
I hope I can keep up this streak of accomplishments.
Word: "streak"
the same meaning

His conclusion took the evidence into account.
In conclusion I want to say ...
Word: "conclusion"
different meanings

The consolidation of the United States' hegemony over a new international economic system.
The hegemony of a single member state is not incompatible with a genuine confederation.
Word: "hegemony"
the same meaning

He heard the phone ringing but didn't want to take the call.
I received several calls today.
Word: "call"
the same meaning