What does "from top to bottom" mean?

In an exhaustive and pervasive manner.

What is a synonym for "from top to bottom"?

Common synonyms include: completely, top down dp, top-down.

prep_phrase

prep_phrase ·Rare ·Advanced level

Prep_phrase

1
In an exhaustive and pervasive manner. adjectival
"She's a born leader from top to bottom."
2
In the manner of conducting a remedy, search, or investigation (etc.) that is thorough and complete. adverbial
"They restored the car from top to bottom."
3
Used other than figuratively or idiomatically: see from, top, to, bottom.

"She's a born leader from top to bottom."