unmentionable unmentionable /ənˈmɛnʃənəbəl/

adjective

1. Unsuitable or forbidden as a topic of conversation  ( unmentionable )
   unsuitable or forbidden as a topic of conversation
    Unmentionable words
   unmentionable words
   

noun

1. A garment worn under other garments  ( undergarment , unmentionable )
   a garment worn under other garments
   
   

 blush blush /ˈblʌʃ/

noun

1. Sudden reddening of the face (as from embarrassment, guilt, shame or modesty)  ( blush , flush )
   sudden reddening of the face (as from embarrassment, guilt, shame or modesty)
   
   
2. A rosy color (especially in the cheeks) taken as a sign of good health  ( blush , rosiness , bloom , flush )
   a rosy color (especially in the cheeks) taken as a sign of good health
   
   

verb

1. () Turn red, as if in embarrassment or shame  ( crimson , redden , flush , blush )
   turn red, as if in embarrassment or shame
    The girl blushed when a young man whistled as she walked by
   The girl blushed when a young man whistled as she walked by
   
2. Become rosy or reddish  ( blush )
   become rosy or reddish
    Her cheeks blushed in the cold winter air
   her cheeks blushed in the cold winter air
   

 reinforcement reinforcement /ˌriːɪnˈfɔrsmənt/

noun

1. () (military) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission  ( reenforcement , reinforcement , support )
   (military) a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission
    They called for artillery support
   they called for artillery support
   
2. An act performed to strengthen approved behavior  ( reinforcement , reward )
   an act performed to strengthen approved behavior
   
3. A device designed to provide additional strength  ( reinforcement , strengthener )
   a device designed to provide additional strength
    The cardboard backing was just a strengthener
   the cardboard backing was just a strengthener
    He used gummed reinforcements to hold the page in his notebook
   he used gummed reinforcements to hold the page in his notebook
   
   
4. (psychology) a stimulus that strengthens or weakens the behavior that produced it  ( reinforcement , reinforcer , reinforcing stimulus )
   (psychology) a stimulus that strengthens or weakens the behavior that produced it
   
5. Information that makes more forcible or convincing  ( reinforcement , reenforcement )
   information that makes more forcible or convincing
    His gestures provided eloquent reinforcement for his complaints
   his gestures provided eloquent reinforcement for his complaints
   

 Geococcyx californianus Geococcyx californianus /dʒiːoʊkoʊˈsɪks kælɪˈfɔrnɪənʊs/

noun

1. Speedy largely terrestrial bird found from California and Mexico to Texas  ( chaparral cock , Geococcyx californianus , roadrunner )
   speedy largely terrestrial bird found from California and Mexico to Texas