ever
At any time, or for all time, especially for emphasis.
Ever is a word that stretches across all time, meaning “at any time” or “always.” When you ask “Have you ever been to the ocean?” you're asking if it happened at any point in someone's entire life. When you promise to be friends forever, you're saying it will last for all time ahead.
The word packs surprising power into four letters. Compare “the best day” to “the best day ever”: that little word amplifies the meaning across your whole existence. When you say “nothing ever works,” you're claiming something has never worked in the past and won't work in the future, a pretty dramatic statement that's probably not quite true.
Ever also intensifies questions and comparisons: “Did you ever finish that puzzle?” adds impatience or emphasis. “Faster than ever” means faster than at any previous time.
Notice how ever teams up with other words: whenever (at any time that), whatever (any thing that), whoever (any person that), forever (for all time). These combinations extend the reach of ever in different directions, but they all share that sense of sweeping across time or possibilities without limits.