dark; gloomy; depressed; dispirited; dark (in colour); dull; ill-boding
pitch-dark; pitch-black; completely dark; very bleak (future); utterly hopeless
implicitly; indirectly; tacitly; by implication; obscurely
hint; suggestion; clue; suggestion
memorization; memorisation; learning by heart
secret manoeuvres (maneuvers); operating behind the scenes
suspicion will raise bogies; once you suspect something, everything else will look suspicious; jumping at shadows
(theatrical) blackout; taking a (sudden) turn for the worse; rapid deterioration
dark clouds; threatening signs; ominous indications
tacit understanding; unspoken agreement
shady; underhanded; questionable
tacit; unspoken; implicit
complete darkness; total darkness; pitch darkness
dark; gloomy; somber; depressing
dark-natured; gloomy; dour; moody; insular; glum
to lose hope; to be plunged into darkness
dark side (of nature, town, etc.)
personal identification number; PIN; password number
encryption; encoding; encipherment
light and darkness; light and shade
recitation; reciting from memory
thoughtless; reckless; rash; excessive; unreasonable; immoderate
autosuggestion; self-suggestion
pitch-dark; pitch-black; completely dark; very bleak (future); utterly hopeless
pitch-dark; pitch-black; completely dark; very bleak (future); utterly hopeless
rote memorization (memorisation); rote learning; indiscriminate memorizing (memorising)
to run aground; to strike a rock; to be stranded on a reef; to reach a deadlock; to come to a standstill; to run into difficulties
to be dazzled by; to be dizzied by; to be lost in (greed, lust, etc.); (arch.) to become dark
foolish; imbecile; feebleminded
secret feud; wordless pantomime performed in the dark
the dark side; the seamy side
to feel gloomy; to feel blue; to feel melancholy
it is darkest under the lamp post; it's hard to see what is under your nose; go abroad to hear of home; you must go into the country to hear what news at London
recitation; reciting from memory
(looking) very bleak; having dim prospects
reef; sunken rock; unforeseen difficulty
dark clouds gather; threatening signs emerge; trouble is afoot
to decide the outcome (e.g. game); to be very different; to be sharply contrasted
dark; gloomy; black; doleful; discouraged; disappointed
crypto-assets; cryptocurrency assets
Dark Continent (i.e. Africa)
suggestive; allusive; evocative; implicit
it is darkest under the lamp post; it's hard to see what is under your nose; go abroad to hear of home; you must go into the country to hear what news at London
semi-darkness; dim light; poor light; dusk; twilight
groping in the dark; exploring new avenues without having any clues
dark place; unlit spot; darkness
subterranean drain; culvert; conduit
dark clouds gather; threatening signs emerge; trouble is afoot
night-vision scope; night scope
complete darkness; total darkness; pitch darkness
memorization power; ability to remember; (good) memory
shady; underhanded; questionable
stupid; half-witted; dull-witted; blockhead; idiot; dimwit
memorizing a musical score
complete darkness; total darkness; pitch darkness
eclipse period (in viral lifecycle); eclipse phase; dark age
cryptographic key; encryption key
cryptography; encryption technology
secretly; covertly; tacitly
dark; gloomy; somber; depressing
to feel gloomy; to feel blue; to feel melancholy
nyctophobia; fear of the dark; scotophobia
assassination of US President John F. Kennedy (November 22, 1963); JFK assassination
gloom; darkness; seclusion
four concealed triplets (yakuman); four concealed three-of-a-kinds
a work or subject to be memorized (memorised)
butoh; style of contemporary Japanese dance featuring dancers in white paint
camera obscura; black box
ominous smile; dark smile; creepy smile
secretly; covertly; tacitly
encryption key; cryptographic key
to conceal (oneself); to hide; to abscond; to deceive; to dissemble; to fool
subterranean drain; culvert; conduit
encrypted mail; cyphermail
to run aground; to strike a rock; to be stranded on a reef; to reach a deadlock; to come to a standstill; to run into difficulties
complete darkness; total darkness; pitch darkness
to disappear; to vanish; to abscond; to decamp
dark; gloomy; somber; depressing
cryptographic system; cryptosystem
behind-the-scenes maneuvering; behind-the-scenes manoeuvring; secret maneuvers; secret manoeuvres
dead of night; shades of night; black of night
groping in the dark; exploring new avenues without having any clues
declaring a concealed kong; forming a concealed four-of-a-kind
concealed pung; concealed three-of-a-kind
beautiful scenery of spring; red-light district
it's always darkest before the dawn; the darkest hour is just before the dawn
to disappear; to vanish; to bolt; to go into hiding
darkness under the trees; dark place under the trees
sad thought; depressing reflection
cryptography; cryptographic theory
suspicion begets monsters
complete darkness; total darkness; pitch darkness
personal identification number; PIN; password number
terminator; twilight zone
assassination of US President John F. Kennedy (November 22, 1963); JFK assassination
cryptographic algorithm; cipher algorithm
shadow cast by a person's hand
secretly; covertly; tacitly
scent of a flower floating about in the air; lingering scent of a flower in the darkness
gathering dark clouds; being under the shadow of
dizziness (from standing up too fast); orthostatic syncope; lightheadedness; vertigo
secret language; code word; argot
to get dark; to grow dark; to end (of a day, year, season, etc.); to come to an end; to be sunk in (e.g. despair); to be lost in (e.g. thought)
rote memorization (memorisation); rote learning; indiscriminate memorizing (memorising)
symmetric key cryptography
cipher-key; key to a code
to disappear; to vanish; to bolt; to go into hiding
to be shrouded by darkness; to fall into deep sadness or despair
dark figure (esp. of crime); dark number; hidden figure; difference between the actual and reported figure
secret key cryptography; symmetric key cryptography
dizziness (from standing up too fast); orthostatic syncope; lightheadedness; vertigo
to run aground; to strike a rock; to be stranded on a reef; to reach a deadlock; to come to a standstill; to run into difficulties
(looking) very bleak; having dim prospects
secretly; covertly; tacitly
secretly; covertly; tacitly
to weep bitterly; to suddenly grow dark
to weep bitterly; to suddenly grow dark
camera obscura; black box
thoughtlessly; recklessly; rashly; excessively; unreasonably; immoderately
road taken by a Chinese ajari buddhist monk when he incurred the wrath of emperor Genso (685-762)
secretly; covertly; tacitly
dark hole; idiot; fool; road taken by a Chinese ajari buddhist monk when he incurred the wrath of emperor Genso (685-762)
cryptography; cryptographic technique
encryption; coding; password
indiscriminate learning by heart
dark line (in a spectrum); absorption line
giving an amorous sidelong look; casting an amorous glance (at); playing up to someone behind the scenes
(both) the bright and dark sides
Data Encryption Standard; DES
link-by-link encipherment
cryptographic synchronization
implicit scope terminator
implicit link (process definition)
conventional cryptosystem
conventional cryptosystem
body part encryption indication
Great Dark Spot (on Neptune)
shade under a tree in full leaf; summer
shade under a tree in full leaf; summer
pairing-based cryptography
concealed pung; concealed three-of-a-kind
(clandestine) brothel (Edo period); whorehouse
prostitute working in clandestine brothel (Edo period)
prostitute; imposter; fraudster; trickster
darkness; blackness; Kalaratri (Deva)
to drive black hogs in the dark; to be unable to distinguish one thing from another; (lit.) to come out from the darkness with a cow
subterranean drain; culvert; conduit
symmetric key cryptography
symmetric key cryptography
scotopic vision; twilight vision
asymmetric key cryptography; asymmetric key cryptosystem
gloom; semi-darkness; dim light; poor light
gloom; semi-darkness; dim light; poor light
gloom; semi-darkness; dim light; poor light
quantum-resistant cryptography
book cipher; Ottendorf cipher
end-to-end encryption; E2EE
end-to-end encryption; E2EE
implicit meaning; tacitly understood meaning