2
N‑UNCOUNT
If you describe an action as emotional or moral
blackmail
, you disapprove of it because someone is using a person's emotions or moral values to persuade them to do something against their will. [DISAPPROVAL
] □
3
VERB
If one person
blackmails
another person, they use blackmail against them. □ [
bla
ck ma
rk
(black marks
) N‑COUNT
A
black mark
against
someone is something bad that they have done or a bad quality that they have which affects the way people think about them. □
bla
ck ma
r|ket
(black markets
) N‑COUNT
If something is bought or sold on the
black market
, it is bought or sold illegally. □
bla ck mar|ket|ee r (black marketeers ) N‑COUNT A black marketeer is someone who sells goods on the black market. [JOURNALISM ]
black|ness
/blæ
knəs/ N‑UNCOUNT
Blackness
is the state of being very dark. [LITERARY
] □
black|out /blæ kaʊt/ (blackouts ) also black-out
1
N‑COUNT
[usu sing] A
blackout
is a period of time during a war in which towns and buildings are made dark so that they cannot be seen by enemy planes. □
2
N‑COUNT
[usu sing, usu n N
] If a
blackout
is imposed on a particular piece of news, journalists are prevented from broadcasting or publishing it. □
3
N‑COUNT
[usu sing, usu n N
] If there is a power
blackout
, the electricity supply to a place is temporarily cut off. □
4
N‑COUNT
If you have a
blackout
, you temporarily lose consciousness. □
bla ck pe p|per N‑UNCOUNT Black pepper is pepper which is dark in colour and has been made from the dried berries of the pepper plant, including their black outer cases.
bla ck pu d|ding (black puddings ) N‑VAR Black pudding is a thick sausage which has a black skin and is made from pork fat and pig's blood. [mainly BRIT ]
bla ck shee p N‑COUNT [usu sing] If you describe someone as the black sheep of their family or of a group that they are a member of, you mean that they are considered bad or worthless by other people in that family or group. [DISAPPROVAL ]
black|smith /blæ ksm I θ/ (blacksmiths ) N‑COUNT A blacksmith is a person whose job is making things by hand out of metal that has been heated to a high temperature.
bla ck spot (black spots ) also blackspot
1
N‑COUNT
If you describe a place, time, or part of a situation as a
black spot
, you mean that it is particularly bad or likely to cause problems. [BRIT
] □
2
N‑COUNT
A
black spot
is a place on a road where accidents often happen. [BRIT
] □
bla ck tie also black-tie
1
ADJ
[usu ADJ
n] A
black tie
event is a formal social event such as a party at which people wear formal clothes called evening dress. □