Today it has become firmly attached to the marsh.
They had firmly become 'us' and their future a joint affair.
As each second passed, that thought became firmly fixed in her mind.
By that time most of Gwent had become firmly under Norman control.
Every word of Hunt's mysterious message had become firmly engraved by that time.
By the close of the 4th century the ceremonial use of lights had become firmly and universally established in the Church.
Shows like these - and the general selections played there - quickly led to the Valhalla becoming firmly associated in the public mind with cult films.
The branch of a tree, embedded in the bottom of the burn, was supporting the sheep which had become firmly wedged against it.
By now, certain rituals have become firmly associated with the party-ushering regimen.
By this time, the U.S. military had become firmly ensconced in Vietnam.