Collins COBUILD Advanced Learner’s Dictionary

1 Don’t use ‘there is’ or ‘there are’ with since to say how long ago something happened. Don’t say, for example, ‘ There are four days since she arrived in London ’. Say ‘It’s four days since she arrived in London’ or ‘She arrived in London four days ago ’. □  It’s three months since you were here last.

2 Don’t use ‘to’ in front of there . Don’t say, for example, ‘ I like going to there ’. Say ‘I like going there ’. □  My family live in India. I still go there often.

there|abouts /ðeə rəbaʊ ts/ PHRASE You add or thereabouts after a number or date to indicate that it is approximate. □  He told us that her age was forty-eight or thereabouts.

there|after /ðeə rɑː ftə ^r , -æ ftə ^r / ADV Thereafter means after the event or date mentioned. [FORMAL ] □  It was the only time she had ever discouraged him and she regretted it thereafter.

there|by /ðeə ^r ba I / ADV You use thereby to introduce an important result or consequence of the event or action you have just mentioned. [FORMAL ] □  Our bodies can sweat, thereby losing heat by evaporation.

there|fore ◆◆◇ /ðeə ^r fɔː ^r / ADV You use therefore to introduce a logical result or conclusion. □  Muscle cells need lots of fuel and therefore burn lots of calories. SYNONYMS therefore ADV

consequently: Relations between the two companies had, consequently, never been close.

thus: …women's access to the basic means of production and thus to political power.

so: I was an only child, and so had no experience of large families.

hence: The Socialist Party was profoundly divided and hence very weak.

there|in /ðeə r I n/

1 ADV [n ADV ] Therein means contained in the place that has been mentioned. [FORMAL ] □  Burning pine branches not only warms your house but improves the smell therein.

2 ADV [n ADV ] Therein means relating to something that has just been mentioned. [FORMAL ] □  Afternoon groups relate to the specific addictions and problems therein.

3 PHRASE When you say therein lies a situation or problem, you mean that an existing situation has caused that situation or problem. [FORMAL or OLD-FASHIONED ] □  Santa Maria di Castellabate is barely mentioned in guidebooks; therein lies its charm.

there|of /ðeərɒ v/ ADV [n ADV ] Thereof is used after a noun to relate that noun to a situation or thing that you have just mentioned. [FORMAL ] □  …his belief in God–or the lack thereof.

there|on /ðeərɒ n/

1 ADV [ADV after v] Thereon means on the object or surface just mentioned. [FORMAL ] □  There was a card on each door with a guest's name inscribed thereon.

2 ADV [n ADV , ADV after v] Thereon can be used to refer back to a thing that has previously been mentioned to show that the word just used relates to that thing. [FORMAL ] □  You will, in addition, pay to the Bank any losses, costs, expenses or legal fees (including VAT thereon).

there|upon /ðeə rəpɒ n/ ADV Thereupon means happening immediately after something else has happened and usually as a result of it. [FORMAL ] □  Ursula had refused to marry Attila the Hun, who thereupon ordered one of his archers to shoot her.

therm /θɜː ^r m/ (therms ) N‑COUNT [num N ] A therm is a measurement of heat.

ther|mal /θɜː ^r m ^ə l/ (thermals )

1 ADJ [ADJ n] Thermal means relating to or caused by heat or by changes in temperature. □  …thermal power stations.

2 ADJ [ADJ n] Thermal streams or baths contain water which is naturally hot or warm. □  Volcanic activity has created thermal springs and boiling mud pools.

3 ADJ [ADJ n] Thermal clothes are specially designed to keep you warm in cold weather. □  My feet were like blocks of ice despite the thermal socks. ● N‑PLURAL Thermals are thermal clothes. □  Have you got your thermals on?

4 N‑COUNT A thermal is a movement of rising warm air. □  Birds use thermals to lift them through the air.

the r|mal i m|ag|ing N‑UNCOUNT Thermal imaging is the use of special equipment that can detect the heat produced by people or things and use it to produce images of them. □  He was found by a police helicopter using thermal imaging equipment.

ther|mo /θɜː ^r moʊ/

1 ADJ [ADJ n] Thermo means using or relating to heat. □  The main thermo power station in the area has been damaged. ● COMB Thermo is also a combining form. □  …the dangers of thermo-nuclear war.

2 COMB Thermo also combines to form nouns. □  The body is made of mineral-reinforced thermo-plastic.

ther|mo|dy|nam|ics /θɜː ^r moʊda I næ m I ks/ The form thermodynamic is used as a modifier. N‑UNCOUNT Thermodynamics is the branch of physics that is concerned with the relationship between heat and other forms of energy.

ther|mom|eter /θə ^r mɒ m I tə ^r / (thermometers ) N‑COUNT A thermometer is an instrument for measuring temperature. It usually consists of a narrow glass tube containing a thin column of a liquid which rises and falls as the temperature rises and falls.

ther|mo|nu|clear /θɜː ^r moʊnjuː kliə ^r , [AM ] -nuː k-/ also thermo-nuclear ADJ [ADJ n] A thermonuclear weapon or device is one which uses the high temperatures that result from a nuclear reaction in order to cause it to explode.

ther|mo|plas|tic /θɜː ^r moʊplæst I k/ (thermoplastics ) N‑COUNT [usu N n] Thermoplastic materials are types of plastic which become soft when they are heated and hard when they cool down.

Ther|mos /θɜː ^r mɒs/ (Thermoses ) N‑COUNT A Thermos , Thermos flask , or in American English Thermos bottle , is a container which is used to keep hot drinks hot or cold drinks cold. It has two thin shiny glass walls with no air between them. [TRADEMARK ]