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Definitions

one and only

ADJECTIVE

one

Synonyms

STRONG

particular separate single singular sole solitary special specific

WEAK

alone definite different lone odd only peculiar precise uncommon unique

Antonyms

STRONG

combined common general indefinite mixed normal ordinary together unimportant united usual

WEAK

none

ADJECTIVE

only

Synonyms

STRONGEST

alone

WEAK

apart by oneself exclusive individual isolated lone matchless once in a lifetime one one-shot particular peerless single sole solitary solo unaccompanied unequaled unique unparalleled unrivaled

ADJECTIVE

sole

Synonyms

STRONGEST

exclusive lone remaining

STRONG

ace individual one particular separate single solitary solo

WEAK

onliest only only one unique unshared

Antonyms

STRONG

combined common general mixed ordinary together united

WEAK

shared

ADJECTIVE

unique

Synonyms

STRONGEST

different exclusive particular rare uncommon

WEAK

individual lone one onliest only separate single solitary solo sui generis unexampled

Antonyms

STRONGEST

common normal ordinary regular usual

WEAK

commonplace like similar standard trite

ADVERB

exclusively

Synonyms

STRONGEST

alone completely entirely only solely wholly

WEAK

but onliest singularly

Antonyms

STRONGEST

incompletely partially

WEAK

unlimited unrestricted

NOUN

beloved

Synonyms

STRONG

baby beau boyfriend darling dear dearest flame girlfriend heartthrob honey idol inamorato love lover pet steady sugar sweetheart treasure

WEAK

fiancé fiancée first and last love of my life number one numero uno object of affection significant other tootsie truelove

NOUN

darling

Synonyms

STRONG

angel baby beloved boyfriend dear dearest dearie flame friend girlfriend love lover pet sugar sweetie treasure truelove

WEAK

apple of one's eye dear one fair-haired boy heart's desire honeybunch light of my life precious

NOUN

sweetheart

Synonyms

STRONGEST

boyfriend companion darling girlfriend heartthrob lover

STRONG

admirer beau beloved dear flame honey inamorata inamorato love lovebird paramour pet steady suitor swain sweet treasure truelove valentine

WEAK

dear one significant other

Antonyms

STRONGEST

enemy foe

NOUN

sweetie

Synonyms

STRONGEST

sweetheart

STRONG

angel baby beloved boyfriend dear dearest dearie flame friend girlfriend honey love lover pet sugar sweet treasure truelove

WEAK

apple of one's eye dear one fair-haired boy heart's desire honeybunch light of my life light of one's life precious

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.

But people are reacting so strongly not because of how Mollen appears to be dealing with a future inevitability, but because in her right-now behavior, she’s cast her son as her one and only.

From Salon • Jun. 4, 2026

Despite mounting attacks on multilateralism, Espinosa says "the UN is the one and only universal platform to address the shared challenges of humanity."

From Barron's • May 14, 2026

In its one and only trip to a Champions League final, in 2006, Arsenal fell to Barcelona.

From The Wall Street Journal • May 6, 2026

And as the New York Times reported, Moroun met with the one and only Howard Lutnick on Monday, hours before Trump’s post, after which Lutnick spoke to Trump by phone.

From Slate • Feb. 14, 2026

The name I drew was Imogene Herdman, and I had used up the one and only compliment I finally thought of for Imogene—patriotic.

From "The Best School Year Ever" by Barbara Robinson

one and only

Example Sentences

Related Words