thanks

UK: /ˈθæŋks/

Collins Concise English Dictionary © HarperCollins Publishers::

thanks / θæŋks/ noun:plural

1. an expression of appreciation or gratitude or an acknowledgment of services or favours given
2. thanks to ⇒ because of: thanks to him we lost the match

interjection

1. an exclamation expressing acknowledgment, gratitude, or appreciation

WordReference Random House Learner's Dictionary of American English © 2025

thank /θæŋk/   v. [~ + object]

1. to express gratitude to (someone):
   We thanked him for his generosity.
2. to hold responsible;
   blame:
   We have him to thank for this lawsuit.

n. [plural]

3. thanks, an expression of a grateful feeling for a kindness, etc.:
   Let us give thanks for this meal.

interj. 

4. thanks, (used as a way of saying "I thank you.'')

Idioms

5. Thank God or thank goodness, (used to express relief or gratitude that something is or comes out well or better than expected, or that harm or danger is avoided):
   Thank God we have our health.
6. Idioms thanks to, because of;
   owing to;
   due to (sometimes used ironically):
   We were late thanks to the bad weather.
7. Idioms thank you, (used as a common expression of gratitude or appreciation, as for a gift or favor):
   She gave him a gift and he said, "Thank you.''

WordReference Random House Unabridged Dictionary of American English © 2025

thank  (thangk), v.t. 

1. to express gratitude, appreciation, or acknowledgment to:
   She thanked them for their hospitality.
2. have oneself to thank, to be personally to blame;
   have the responsibility:
   The citizens have only themselves to thank for corruption in government.
3. thank God, (used interjectionally to express relief, thankfulness, etc.) Also, thank goodness, thank heaven. 
4. thank you, (used interjectionally to express gratitude, appreciation, or acknowledgment, as for a gift, favor, service, or courtesy).

n. 

5. Usually, thanks. a grateful feeling or acknowledgment of a benefit, favor, or the like, expressed by words or otherwise: to return a borrowed book with thanks.
6. thanks to, because of;
   owing to: Thanks to good organization and hard work, the benefit concert was a great success.

interj. 

7. thanks, (used as an informal expression of gratitude, appreciation, or acknowledgment).

• bef. 900; (noun, nominal) Middle English: favorable thought, goodwill, gratitude, (in singular and plural) expression of thanks; Old English thanc (in singular) expression of thanks, origin, originally, thought, thoughtfulness; (verb, verbal) Middle English thanken, Old English thancian (cognate with Dutch, German danken); akin to think¹

thank′er, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

thank / θæŋk/ verb (transitive)

1. to convey feelings of gratitude to
2. to hold responsible: he has his creditors to thank for his bankruptcy

Etymology: Old English thancian; related to Old Frisian thankia, Old Norse thakka, Old Saxon, Old High German thancōn