He taught at top-rank institutions after leaving Poland.
Under his guidance Caltech almost immediately entered the top rank of American research centers.
A second senior MI6 officer is resigning in a shake-up of the top ranks of Britain's secret intelligence service, the Guardian has learned.
At the least, they try to purge from the top ranks those they calculate might cause them trouble.
This college was for those young officers deemed to be destined for the top ranks in the American Army.
The popularity of brownstone as a building material elevated the Portland businesses to the top ranks of the industry.
This is a world-class great performance that will propel Theron into the top ranks of Hollywood stars.
The nice thing about Eastern European orchestras, even if they are not of the top rank, is that they have a sound of their own.
The young prince had risen rapidly through the ranks of the school's Combined Cadet Corps, being promoted to the top rank of Cadet Officer last month.
This is top-rank crime writing.
England cricket stars Andrew Flintoff and Kevin Pietersen are propelling the maker of their bats into the top rank of equipment suppliers.
She is a top-rank Scottish musical export and was last year made an MBE in the Queen's birthday honours.
Only top-rank stars have their hand and footprints in cement at Grauman's Chinese Theatre, Hollywood.
He developed his strength with frequent long-distance training, and top-rank competition in amateur athletics.
He is not a top-rank bridge player.
The next party congress is likely to see some major changes in the top ranks of the leadership.
Synonyms
most powerful, most important, foremost, greatest, chief, outstanding, pre-eminent, richest, principal, dominant, most influential, most illustrious, paramount, top-tier, top-rank, of the first rank, first-rate