crystal
gb/kɹˈɪstəl/ us/kɹˈɪstəl/
B1
英語
~ 2800
語義
0件の語義
名詞
B1
entity
1
Transparent mineral with regular structure
A hard, clear stone or mineral that has a regular shape inside.
用法パターン：
[something] is a crystal
よくある間違い：
Learners may confuse 'crystal' with 'glass'. Glass is not crystalline; it has no regular internal structure.
類義語
quartz (A specific and common type of crystal, but not all crystals are quartz.)
対義語
amorphous solid (A solid without a regular internal structure, the opposite of crystalline.)
コロケーション
crystal structure
|crystal formation
|quartz crystal
|liquid crystal
|crystal lattice
テーマ
science
|nature
|materials
例文
- The geologist examined a large quartz crystal.
- Snowflakes are tiny ice crystals formed in the atmosphere.
- This watch contains a crystal that regulates its timekeeping.
学習者向け例文
- I found a crystal on the beach.
- Salt is made of small crystals.
- The crystal is clear and shiny.
名詞
B1
entity
2
Fine clear glass tableware or ornaments
A kind of clear glass used to make nice cups, bowls, or decorations.
よくある間違い：
Learners sometimes think 'crystal' always means a natural mineral. In this sense it refers to man-made fine glass.
類義語
glassware (General term for objects made of glass; not necessarily high-quality or decorative.)
対義語
plasticware (Tableware made from plastic instead of glass.)
コロケーション
crystal vase
|cut crystal
|crystal glassware
テーマ
home
|materials
|daily_life
|arts_entertainment
例文
- The couple received a set of crystal wine glasses as a wedding gift.
- She displayed the crystal vase on the dining table.
- The chandelier sparkled with dozens of hanging crystals.
学習者向け例文
- My grandmother has a crystal bowl.
- We drink wine from crystal glasses.
- The crystal vase is very beautiful.
名詞
informal
B2
entity
3
Methamphetamine in crystalline form
An illegal drug called methamphetamine that looks like small crystals.
よくある間違い：
Learners may not realize 'crystal' can mean an illegal drug in slang; context is essential.
類義語
meth (Common slang abbreviation for methamphetamine; same substance as 'crystal' in this context.)
コロケーション
smoke crystal
|buy crystal
テーマ
crime
|health
|law
例文
- The police seized several grams of crystal during the raid.
- He was arrested for selling crystal to undercover officers.
- Crystal abuse can lead to severe health problems.
学習者向け例文
- The police found crystal in his car.
- Crystal is a dangerous drug.
- She was arrested for selling crystal.
adjective
B2
property
4
Perfectly clear or easy to understand
Very clear to see through or very easy to understand.
用法パターン：
[something] is crystal [clear]
よくある間違い：
Learners may overuse 'crystal' alone without 'clear'; as an adjective it almost always appears in the fixed phrase 'crystal clear'.
類義語
transparent (Focuses more on the physical property of letting light pass through.)
対義語
unclear (Not easy to see or understand.)
コロケーション
crystal clear water
|crystal clear instructions
テーマ
communication
|perception
|core_vocabulary
例文
- The lake water was crystal clear.
- Her explanation was crystal clear and left no doubts.
- Through the window, the view was crystal clear.
学習者向け例文
- The water is crystal clear.
- His words are crystal clear.
- The air was crystal clear.
文法
辞書形
crystal
IPA
GB/kɹˈɪstəl/
US/kɹˈɪstəl/
音節・強勢
crys - tal （2音節）
Stress on 1st syllable (crys)
活用形
Noun
- Base: crystal
- Plural: crystal, crystals
関連語
Forms
crystals
noun
Core family
crystalline
adjective
crystallize
verb B2
Advanced or less common
crystallization
noun C1
表現
clear as crystal
1/klˈɪɹ ˈæz kɹˈɪstəl/
fixed phrase
Extremely easy to perceive or understand
Very easy to see or very easy to understand.
例文
- His answer was clear as crystal.
- The mountain air was clear as crystal.
have a crystal ball
1/hˈæv ə kɹˈɪstəl bˈɔl/
idiom
Ability to predict the future
To know what will happen in the future, like magic.
例文
- I can't have a crystal ball — I don't know what will happen next year.
- She isn't expected to have a crystal ball and predict market changes.
crystal clear
1/kɹˈɪstəl klˈɪɹ/
fixed phrase
Perfectly transparent or obvious
Very easy to see through or very easy to understand.
例文
- Her instructions were crystal clear.
- The instructions were crystal clear, so everyone knew what to do.
- The water in the bay was crystal clear.
- On a sunny day, the sea here is crystal clear.