Learning language
Translation language
adjective · C1 · very rare word · UK/US

deep-sea

deep-sea

Meaning of deep-sea

living beings sea life adjective

Learn deep-sea with free cards in 30 seconds.

Check vocabulary level

10 minutes a day can add up to 3,000 words a year. Spaced flashcards bring each word back when it is time to remember it.

Free flashcards·10,000+ words in the database·scheduled reviews
How important is this word
C1very rare word

deep-sea fits your vocabulary level. Check your level if you are not sure.

Pronunciation
British English/ˈdiːp siː/
American English/ˈdiːp siː/
Russian transcription[ɡlʊbəkəˈvodnɨj]
deep-sea
deep-sea - глубоководный
free flashcards
Learn for freeLearn 7 words from "Sea Life"
Active review

How many words can you learn in a year?

If you learn 8-10 new words a day and review them regularly with flashcards, you can cover about 3,000 words in a year.

ZapomniEnglish brings words back at the right time: difficult words appear more often, familiar words less often.

Not sure what pace to start with? Check your vocabulary level and we will suggest words for your level.

We count words you add to learning and review regularly. Active use grows gradually and depends on practice.

How many words you can add to active review
PacePer dayPer yearBest for
Easy3 words≈ 1,100 wordsstarting without pressure
Balanced5 words≈ 1,800 wordssteady growth
Recommended8 words≈ 2,900 wordsaround 3,000 words a year
Fast10 words≈ 3,650 wordsvisible vocabulary growth
Intensive15 words≈ 5,500 wordsstrong motivation

deep-sea with Russian translation

deep-sea usage examples

🇷🇺Russian🇬🇧English

Глубоководные рыбы живут во тьме.

Deep-sea fish live in darkness.

🇷🇺Russian🇬🇧English

Они отправили робота для исследования глубоководного дна.

They sent a robot to explore the deep-sea floor.

Learn by topic

deep-sea belongs to the topic "Sea Life". Start with a short 7-word set so the word is easier to remember in context.

deep-seaглубоководный
playиграть
oceanокеан
groupгруппа
pairпара
cowкорова
eggяйцо

deep-sea synonyms

Related word breakdowns

What's the difference between deep-sea / underwater / marine / pelagic / benthic / bathyal

🇬🇧English
deep-sea

Hyphenated adjective commonly used to describe organisms or habitats of the deep ocean; stylistically neutral and slightly more formal/technical.

C1Often

Deep-sea corals are adapted to low light and high pressure.

Глубоководные кораллы адаптированы к слабому освещению и высокому давлению.

🇬🇧English

General term meaning 'beneath the surface of the water'; applies to shallow and deep contexts, so broader than 'deep-sea'.

C1Very Often

Underwater cameras are used to study both shallow reefs and deep-sea environments.

Подводные камеры используются для изучения как мелких рифов, так и глубоководных сред.

🇬🇧English

Broad term meaning 'of or relating to the sea/ocean' — includes coastal, pelagic, and deep-sea contexts; more general than 'deep-sea'.

C1Very Often

Marine biologists study life from tide pools to the deep sea.

Морские биологи изучают жизнь от прибрежных луж до глубоководных зон.

P
🇬🇧English
pelagic

Refers to organisms or habitats in the open water column away from the shore and bottom; not synonymous with deep-sea (which often implies depth and/or benthic association).

C1Rarely

Pelagic fish like tuna occupy the open water column rather than the seafloor.

Пелагические рыбы, такие как тунец, обитают в толще воды, а не у дна.

B
🇬🇧English
benthic

Pertains to organisms and communities living on or in the seabed (the benthic zone); intersects with deep-sea when referring to deep benthic habitats but is not identical.

C1Rarely

Benthic organisms on the abyssal plain include many types of worms and crustaceans.

Бентос абиссальной равнины включает многие виды червей и ракообразных.

B
🇬🇧English
bathyal

Technical term for the bathyal zone (roughly 200–2000 m); a specific depth band within the deep sea rather than a general synonym.

C1Very Rarely

Bathyal communities differ markedly from shallow coastal ecosystems.

Батальная биота заметно отличается от прибрежных экосистем.

A
🇬🇧English
abyssal

Refers to the abyssal zone of the ocean floor (typically 2000–6000 m); a precise depth-class term used in oceanography and ecology.

C1Rarely

Abyssal plains are some of the flattest, least disturbed habitats on Earth.

Абиссальные равнины — одни из самых ровных и наименее нарушенных местообитаний на Земле.

H
🇬🇧English
hadal

Technical term for the hadal zone (trenches deeper than ~6000 m); highly specialized and denotes the deepest parts of the ocean.

C1Very Rarely

Hadal fauna are adapted to extreme pressure and darkness in ocean trenches.

Хадальная фауна адаптирована к экстремальному давлению и темноте в океанических желобах.

What's the difference

Related words and lists for deep-sea

How to pronounce deep-sea and what this word means

deep-sea translation: глубоководный. This page includes translation, pronunciation, transcription, audio, usage examples and related words.

how to pronounce deep-sea

/ˈdiːp siː/

deep-sea translation

глубоководный

deep-sea examples

Deep-sea fish live in darkness.

deep-sea transcription

/ˈdiːp siː/, /ˈdiːp siː/

How this dictionary entry is reviewed

ZapomniEnglish prepares dictionary data automatically, then the editorial workflow checks high-frequency words, top lists, and pages that already receive search impressions first.

Translation and meaningPronunciation and transcriptionExamples, synonyms, and topics

Questions about this word

deep-sea meaning: what does it mean?

living beings sea life adjective

deep-sea pronunciation: how do you pronounce it?

deep-sea is pronounced as /ˈdiːp siː/. Audio is available on this page when the word has a recording.

deep-sea definition and sentence examples: how is it used in a sentence?

Deep-sea fish live in darkness. Translation: Глубоководные рыбы живут во тьме.

Is deep-sea part of Sea Life vocabulary?

Yes, deep-sea (глубоководный) can be learned in the Sea Life topic. This semantic link helps build related word lists and topic-based practice.

Is deep-sea part of Living Beings vocabulary?

Yes, deep-sea (глубоководный) can be learned in the Living Beings topic. This semantic link helps build related word lists and topic-based practice.

Audio practiceExamplesSmart repeats

Learn deep-sea in your vocabulary

Add this word to practice, repeat it with audio, examples and your own word lists.