adj · noun · verb · 11 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
General-American:/ˈʌndɚˌlaɪn/
Received-Pronunciation:/ˈʌndəˌlaɪn/
US:Recorded audio is listed in the source snapshot.
/ˌʌndɚˈlaɪn/General American, alternative pronunciation of the verb
/ˌʌndəˈlaɪn/Received Pronunciation, alternative pronunciation of the verb
rhymes with -aɪn (for alternative pronunciation of the verb)
CMU ARPABET:AH1 N D ER0 L AY2 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Passing under a railway line.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
A line placed underneath a piece of text in order to provide emphasis or to indicate that it should be viewed in italics or (in electronic documents) that it acts as a hyperlink.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
The character _.
Definition source: English Wiktionary via Wiktextract
Usage: uncommon
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: underscore, low line
Antonyms: none provided
4
noun
Meaning 4
An announcement of a theatrical performance to follow, placed in an advertisement for the current one.
Definition source: English Wiktionary via Wiktextract
Usage: dated
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
A caption beneath a photograph (which may have more than one line of text).
Definition source: English Wiktionary via Wiktextract
Usage: dated
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
To draw a line underneath something, especially to add emphasis.
Definition source: English Wiktionary via Wiktextract
Examples
underline the important words in the text
Meaning relationships
Synonyms: underscore
Antonyms: none provided
7
verb
Meaning 7
To emphasise or stress something.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
8
verb
Meaning 8
To influence secretly.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively, obsolete
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
9
noun
Meaning 9
a line drawn underneath (especially under written matter)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: underscore
Antonyms: none provided
Broader terms: stroke
10
verb
Meaning 10
draw a line or lines underneath to call attention to
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Etymology tree Proto-Indo-European *h1én Proto-Indo-European *h1entér Proto-Indo-European *(H)n̥dhí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dhér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- English line English underline From under- + line.
Across languages
Translations
100 source translations are retained for this English entry.
Bulgarian:
подчертаване
(podčertavane)
— line underneath text
Catalan:
subratllat
— line underneath text
Czech:
podtržení
— line underneath text
Czech:
podtrhnutí
— line underneath text
Finnish:
alleviivaus
— line underneath text
French:
soulignement
— line underneath text
Galician:
subliñado
— line underneath text
German:
Unterstreichung
— line underneath text
Greek:
υπογράμμιση
(ypográmmisi)
— line underneath text
Hungarian:
aláhúzás
— line underneath text
Indonesian:
garis bawah
— line underneath text
Japanese:
下線
(kasen)
— line underneath text
Korean:
밑줄
(mitjul)
— line underneath text
Māori:
tāraro
— line underneath text
Polish:
podkreślenie
— line underneath text
Portuguese:
sublinha
— line underneath text
Russian:
подчёркивание
(podčórkivanije)
— line underneath text
Sanskrit:
अधोरेखा
(adhorekhā)
— line underneath text
Swedish:
understrykning
— line underneath text
Tagalog:
salungguhit
— line underneath text
Chinese Mandarin:
下劃線 /下划线
(xiàhuáxiàn)
— an _ character
Czech:
podtržítko
— an _ character
Finnish:
alaviiva
— an _ character
Galician:
subliñado
— an _ character
German:
Unterstrich
— an _ character
Hungarian:
aláhúzásjel
— an _ character
Indonesian:
garis bawah
— an _ character
Māori:
tāraro
— an _ character
Polish:
podkreślenie
— an _ character
Polish:
podkreślnik
— an _ character
Portuguese:
underline
— an _ character
Russian:
подчёркивание
(podčórkivanije)
— an _ character
Swedish:
understreck
— an _ character
Armenian:
ընդգծել
(əndgcel)
— to draw an underline
Asturian:
sorrayar
— to draw an underline
Bulgarian:
подчертавам
(podčertavam)
— to draw an underline
Catalan:
subratllar
— to draw an underline
Catalan:
sotalinear
— to draw an underline
Cornish:
islinya
— to draw an underline
Czech:
podtrhnout
— to draw an underline
Danish:
understrege
— to draw an underline
Dutch:
onderlijnen
— to draw an underline
Dutch:
onderstrepen
— to draw an underline
Esperanto:
substreki
— to draw an underline
Finnish:
alleviivata
— to draw an underline
French:
souligner
— to draw an underline
Galician:
subliñar
— to draw an underline
German:
unterstreichen
— to draw an underline
Greek:
υπογραμμίζω
(ypogrammízo)
— to draw an underline
Hungarian:
aláhúz
— to draw an underline
Indonesian:
menggarisbawahi
— to draw an underline
Italian:
sottolineare
— to draw an underline
Luxembourgish:
ënnersträichen
— to draw an underline
Māori:
tāraro
— to draw an underline
Polish:
podkreślać
— to draw an underline
Polish:
podkreślić
— to draw an underline
Portuguese:
sublinhar
— to draw an underline
Russian:
подчёркивать
(podčórkivatʹ)
— to draw an underline
Russian:
подчеркну́ть
(podčerknútʹ)
— to draw an underline
Sicilian:
suttaliniari
— to draw an underline
Spanish:
subrayar
— to draw an underline
Swedish:
stryka under
— to draw an underline
Swedish:
understryka
— to draw an underline
Tagalog:
salungguhitan
— to draw an underline
Turkish:
altını çizmek
— to draw an underline
Ukrainian:
підкре́слювати
(pidkrésljuvaty)
— to draw an underline
Ukrainian:
підкре́слити
(pidkréslyty)
— to draw an underline
Yiddish:
אונטערשטרײַכן
(untershtraykhn)
— to draw an underline
Armenian:
ընդգծել
(əndgcel)
— to emphasise or stress something
Bulgarian:
наблягам
(nabljagam)
— to emphasise or stress something
Catalan:
subratllar
— to emphasise or stress something
Catalan:
sotalinear
— to emphasise or stress something
Cornish:
islinya
— to emphasise or stress something
Danish:
understrege
— to emphasise or stress something
Dutch:
onderlijnen
— to emphasise or stress something
Dutch:
onderstrepen
— to emphasise or stress something
Dutch:
benadrukken
— to emphasise or stress something
Finnish:
alleviivata
— to emphasise or stress something
French:
souligner
— to emphasise or stress something
French:
attirer l’attention
— to emphasise or stress something
Galician:
subliñar
— to emphasise or stress something
German:
unterstreichen
— to emphasise or stress something
Hungarian:
hangsúlyoz
— to emphasise or stress something
Hungarian:
nyomatékosít
— to emphasise or stress something
Italian:
sottolineare
— to emphasise or stress something
Kazakh:
баса айту
(basa aitu)
— to emphasise or stress something
Kazakh:
баса көрсету
(basa körsetu)
— to emphasise or stress something
Luxembourgish:
ënnersträichen
— to emphasise or stress something
Polish:
podkreślać
— to emphasise or stress something
Polish:
podkreślić
— to emphasise or stress something
Portuguese:
sublinhar
— to emphasise or stress something
Russian:
подчёркивать
(podčórkivatʹ)
— to emphasise or stress something
Russian:
подчеркну́ть
(podčerknútʹ)
— to emphasise or stress something
Spanish:
subrayar
— to emphasise or stress something
Swedish:
understryka
— to emphasise or stress something
Swedish:
betona
— to emphasise or stress something
Turkish:
altını çizmek
— to emphasise or stress something
Ukrainian:
підкре́слювати
(pidkrésljuvaty)
— to emphasise or stress something
Ukrainian:
підкре́слити
(pidkréslyty)
— to emphasise or stress something
Yiddish:
אונטערשטרײַכן
(untershtraykhn)
— to emphasise or stress something