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Definitions

second

[sek-uhnd] / ˈsɛk ənd /
ADJECTIVE
next; subordinate
Synonyms
STRONG
alternative double duplicate extra following further inferior lower place repeated reproduction runner-up secondary succeeding supporting twin
WEAK
additional another lesser next in order other subsequent unimportant
Antonyms
STRONG
first-class first-rate important superior
NOUN
shortest interval of time
Synonyms
STRONGEST
moment
STRONG
flash instant jiffy sec shake twinkling wink
WEAK
bat of an eye nothing flat split second
NOUN
support; duplicate
Synonyms
STRONGEST
double runner-up
STRONG
assistant backer exponent helper placer proponent reproduction supporter twin
Antonyms
STRONG
opponent
VERB
support, advance a suggestion
Synonyms
STRONGEST
assist
STRONG
aid approve back encourage endorse forward further promote uphold
WEAK
back up give moral support go along with stand by
Antonyms
STRONG
block cease disapprove discourage dissuade halt hinder hurt impede obstruct oppose protest reject stop
WEAK
move

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Watchers on Saturday spotted what appeared to be a pip in the second egg.

From Los Angeles Times • Apr. 5, 2026

The two US military personnel on board the F-15E Strike Eagle managed to eject from the aircraft, and the pilot was rescued the same day, but the second crew member was missing.

From BBC • Apr. 5, 2026

Americans awoke on Easter Sunday to the brilliant news that a second American airman had been rescued from Iranian territory after a crash last week.

From The Wall Street Journal • Apr. 5, 2026

The second is “Rooster,” Bill Lawrence’s latest HBO comedy.

From Salon • Apr. 5, 2026

A second Gestapo agent in plain clothes was pawing eagerly through a pile of silver rijksdaalders and jewelry heaped on the dining room table.

From "The Hiding Place" by Corrie ten Boom

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.