n. 1
A short, indeterminate amount of time.
I'll be there in a second.
n. 2
Something that is number two in a series.
v. 1
To assist or support; to back.
adj. 1
Number-two; following after the first one with nothing between them. The ordinal number corresponding to the cardinal number two.
He lives on Second Street.

Related words

Word family: secondment
Phrases: second sight second of arc second childhood second brain cycle per second parallax second second-class just a second

Forms

Plural: seconds → moments, minutes, instants, secs…
Past participle: seconded
e.g. seconded → backed, supported, advanced, favor'd…

Use in printed books, per decade from 1850 to 2019.

2 letters: mo¹
3 letters: bit¹, aid¹, sec¹, jif¹
4 letters: back¹, help¹, tick¹, abet²
5 letters: other², favor², flash¹, crack¹, twink¹, jiffy², trice¹
6 letters: moment², minute², detail², assist², favour², helper², backer², stound
7 letters: support², advance², promote², instant², approve², endorse², twinkle²
8 letters: seconder
9 letters: assistant³, encourage³, secondary⁴, supporter³, irregular⁴, twinkling³
10 letters: maintainer, secondment
11 letters: endorsement³

The small number after each word is its number of syllables (abet² = 2 syllables).