numeral / adjective / noun / adverb / verb
second
SEK-uhnd/sˈɛkʌnd/
Following the first in a sequence or rank.
The middle object is second when you count from the left.

Etymology
Latin secundus describes what follows or comes next, which supplies the idea of the position immediately after first. English adopted it in place of other, whose additional meanings made the ordinal sense ambiguous.
In context
the second tower of the World Trade Center, that would be tower number two, has collapsed.
More examples
- Maya finishes second in the race.
- We keep a second key in a safe place.
- I second your proposal to postpone the vote.
- The outlet sells factory seconds with minor flaws.
Forms
Similar words
- next
- Immediately following any position, not necessarily the first.
- runner-up
- Usually the second-place finisher, specifically in a competition.