verb · 7 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.
UK:/ˌʌn.dəˈlaɪ/
Southern-England:Recorded audio is listed in the source snapshot.
US:/ˌʌn.dɚˈlaɪ/
Australian:/ˌan.dəˈlɑɪ/
rhymes with -aɪ
CMU ARPABET:AH2 N D ER0 L AY1
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
verb
Meaning 1
To lie in a position directly beneath something.
Definition source: English Wiktionary via Wiktextract
Usage: intransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
verb
Meaning 2
To lie under or beneath.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
Examples
A stratum of clay underlies the surface gravel.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
To serve as a basis of; form the foundation of.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
Examples
a doctrine underlying a theory
Meaning relationships
Synonyms: underpin
Antonyms: none provided
4
verb
Meaning 4
To be subject to; be liable to answer, as a charge or challenge.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
verb
Meaning 5
To underlay.
Definition source: English Wiktionary via Wiktextract
Topics: business, mining
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
be or form the base for
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: be
7
verb
Meaning 7
lie underneath
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: lie
History
Etymology
From Middle English underlien, underliggen, from Old English underliċġan (“to underlie, to be subject to, give way to”), equivalent to under- + lie. Cognate with Dutch onderliggen (“to lie below, lie on the bottom of”), German unterliegen (“to lie under, be subject to, succumb”).
Across languages
Translations
15 source translations are retained for this English entry.
Bulgarian:
стоя в основата на
(stoja v osnovata na)
— to serve as a basis of
Chinese Mandarin:
构成基础
— to serve as a basis of
Dutch:
ten grondslag liggen aan
— to serve as a basis of
Finnish:
olla perustana
— to serve as a basis of
French:
sous-tendre
— to serve as a basis of
German:
zugrunde liegen
— to serve as a basis of
Indonesian:
mendasari
— to serve as a basis of
Indonesian:
melandasi
— to serve as a basis of
Japanese:
基礎となる
(kiso to naru)
— to serve as a basis of