climax; peak; zenith; apex
pride of place; most prominent; top-ranking
masterpiece; masterwork; crowning work; one's magnum opus; work of the highest quality
person of paramount authority; supreme wielder of power
senior leadership; senior leader; upper echelon (of power); top-ranking officer
highest ever; record-high; highest on record
record high; all-time high
highest score; highest number of points; top grade; peak altitude; highest point
best (highest) record; new record
supreme leader; ultimate leader
maximum temperature; highest temperature; (today's) high
supreme council; high council; Supreme Soviet (former USSR)
highest institute of education
largest amount of money; maximum amount of money
highest level; high-water mark
(the) best of one's life; lifetime ...
oldest; most advanced age
senior advisor; chief advisor
chief executive officer; CEO
chief executive officer; CEO
highest price; price ceiling
maximum punishment; maximum sentence
supreme law (of the land)
chief technology officer; chief technical officer; CTO
chief operating officer; COO
chief financial officer; CFO
Supreme Court of Judicature (Scotland); High Court (England); Parlement (France)
(federal) Supreme Court (US, Brazil, etc.); High Court (Australia)
chief investment officer; CIO
most valuable player; MVP
General Headquarters, Supreme Commander for the Allied Powers (1945-1952); GHQ
General Headquarters, Supreme Commander for the Allied Powers (1945-1952); GHQ
Supreme Commander for the Allied Powers (in Japan); SCAP
highest value; maximum value
magnum opus; (one's) best work
chief information officer; CIO
Supreme Public Prosecutor's Office
tournament win in the highest division
highest honorifics; honorific language mainly reserved for speaking of or to a member of the Imperial family
supreme commander; commander-in-chief; captain general
Supreme Audit Institution