repository repository /riːˈpɑːzəˌtɔri/

noun

1. () A facility where things can be deposited for storage or safekeeping  ( deposit , depositary , depository , repository )
   a facility where things can be deposited for storage or safekeeping
   
2. () A person to whom a secret is entrusted  ( secretary , repository )
   a person to whom a secret is entrusted
   
3. A burial vault (usually for some famous person)  ( monument , repository )
   a burial vault (usually for some famous person)
   
   

 bone marrow bone marrow /boʊn ˈmæroʊ/

noun

1. () The fatty network of connective tissue that fills the cavities of bones  ( bone marrow , marrow )
   the fatty network of connective tissue that fills the cavities of bones
   
   
2. Very tender and very nutritious tissue from marrowbones  ( bone marrow , marrow )
   very tender and very nutritious tissue from marrowbones
   
   

 unselfishness unselfishness /ʌnˈsɛlfɪʃnɪs/

noun

1. () The quality of not putting yourself first but being willing to give your time, money or effort etc. for others  ( unselfishness )
   the quality of not putting yourself first but being willing to give your time, money or effort etc. for others
    Rural people show more devotion and unselfishness than do their urban cousins
   rural people show more devotion and unselfishness than do their urban cousins
   
2. Acting generously  ( generosity , unselfishness )
   acting generously
   
   

 exhaust exhaust /ɪgˈzɔst/

noun

1. System consisting of the parts of an engine through which burned gases or steam are discharged  ( exhaust , exhaust system )
   system consisting of the parts of an engine through which burned gases or steam are discharged
   
   
2. Gases ejected from an engine as waste products  ( exhaust , exhaust fumes , fumes )
   gases ejected from an engine as waste products
    The car emitted dark fumes from its exhaust.
   The car emitted dark fumes from its exhaust.
   
   

verb

1. () Wear out completely  ( beat [Informal] , tucker [Informal, N. American] , tucker out [Informal, N. American] , exhaust , wash up )
   wear out completely
    This kind of work exhausts me
   This kind of work exhausts me
    I'm beat
   I'm beat
    He was all washed up after the exam
   He was all washed up after the exam
   
2. () Use up (resources or materials)  ( consume , deplete , eat , eat up , exhaust , run through , use up , wipe out )
   use up (resources or materials)
    This car consumes a lot of gas
   this car consumes a lot of gas
    We exhausted our savings
   We exhausted our savings
    They run through 20 bottles of wine a week
   They run through 20 bottles of wine a week
   
3. () Deplete  ( play out , run down , tire , exhaust , sap )
   deplete
    Exhaust one's savings
   exhaust one's savings
    We quickly played out our strength
   We quickly played out our strength
   
4. Eliminate (a substance)  ( exhaust , expel , discharge , eject , release )
   eliminate (a substance)
    Combustion products are exhausted in the engine
   combustion products are exhausted in the engine
    The plant releases a gas
   the plant releases a gas
   
5. Use up the whole supply of  ( exhaust )
   use up the whole supply of
    We have exhausted the food supplies
   We have exhausted the food supplies