| 成句・複合語: |
| baby blue | n | (pale blue colour) | 淡い青色、空色 名 |
| She painted the nursery a gorgeous baby blue. |
| baby blue | adj | (pale blue in colour) | 淡い青色の、空色の 形 |
| baby blue | npl | informal (blue eyes) | 青い目 名 |
| Sinatra was famous for his baby blues. |
| baby blue | npl | informal, UK (postnatal tearfulness) | 産後のうつ症状 名 |
| Many first-time mothers suffer from the baby blues. |
| black and blue | adj | informal (badly bruised) | 打撲であざになった、打撲で青黒くなった 形 |
| The bullies beat the unfortunate child until he was black and blue. |
| blue belt | n | (martial arts rank) 柔道などの段 | 青帯 名 |
| blue belt | n | (sb with blue belt in martial arts) 柔道など | 青帯の人 名 |
| Don't threaten him, he's a blue belt. |
| blue blood | n | figurative (aristocratic or royal descent) | 貴族の出 名 |
| Queen Elizabeth II is a blue blood. |
| blue book | n | figurative (guide, almanac) | 紳士録、政府職員録、便覧、年鑑 名 |
| blue book | n | US (a price list, especially of cars) | 値段表 名 |
| Never buy a used car until you have checked its blue book value. |
| blue cheese | n | (soft veined cheese) | ブルーチーズ 名 |
| There are many types of blue cheese, Roquefort and Stilton are the most famous. |
| blue chip | | 証券 | 優良株 名 |
| | ポーカー | ブルーチップ 名 |
| | | 優良企業 名 |
| | | 一流品 名 |
| blue crab | n | (variety of crab) | ワタリガニ 名 |
| blue eyes | npl | (eyes with blue irises) | 青い目 名 |
| Many Scandinavians have blond hair and blue eyes. |
| blue in the face | adj | figurative (completely exasperated) | 青ざめて 形 |
| I've told my daughter to pick up her clothes until I'm blue in the face. |
| blue jay | n | (a North American songbird) 北米の鳥 | アオカケス 名 |
| The blue jay at my feeder heckles all the smaller birds, but he's certainly pretty. |
| blue jeans | npl | (blue denim trousers) | ブルージーンズ 名 |
| blue jeans | n | US (blue denim pants ) | ブルージーンズ 名 |
| I don't wear dress clothes any more since I retired; I'm living in blue jeans. |
| blue laws | npl | US, figurative (laws restricting Sunday trading) 宗教 | ブルー・ロー 名 |
| Because of the blue laws, the many malls in the town are closed on Sundays. |
| blue lips | npl | (symptom: lips with bluish tinge) | 真っ青な唇 名 |
| Blue lips can indicate anemia or cardiovascular problems. |
| blue lips | n | (purple flowering plant) 植物 | ブルーリップス 名 |
| blue moon | n | figurative (long interval) | 非常に長い期間 名 |
| He only calls once in a blue moon. |
| blue water | adj | (seagoing) | 青海原の 形 |
| I only sail on inland rivers and lakes, never on blue waters. |
| blue-blooded, blue blooded | adj | figurative (aristocratic, royal) | 貴族出身の 形 |
| Prince Charles is certainly blue blooded. |
| blue-collar | | | 肉体労働(者)の、ブルーカラーの 形 |
| Note: 対義語はwhite-collar |
| blue-collar worker | n | (manual labourer) | 肉体労働者、ブルーカラー労働者 名 |
| Western Pennsylvania has many blue-collar workers such as steel workers and coal miners. |
| blue-green | adj | (bluish green in colour) 色 | 青緑の 形 |
| It's so relaxing to watch the blue-green sea during the day. |
| blue-sky | adj | (creative, imaginative) | 非現実的な、非実際的な、空想上の 形 |
| bolt from the blue | n | (sth unexpected) | 青天のへきれき、寝耳に水、思わぬ出来事 名 |
| The accusation of theft was a bolt from the blue. |
| cobalt blue | n | (artist's pigment: bright blue) 絵の具など | コバルトブルー、鮮やかな青色 名 |
| cobalt blue | adj | (bright blue in colour) | コバルトブルーの 形 |
| cobalt blue | n | (bright blue colour) 色 | コバルトブルー、鮮やかな青色 名 |
| dark blue | n | (navy or deep-blue colour) 色 | 紺色、紺青色 名 |
| People wearing dark blue are hard to see at night. |
| dark blue | adj | (navy or deep blue in colour) 色 | 紺色の、ダークブルーの 形 |
| People wearing dark blue clothing are hard to see at night. |
| feel blue | vi | informal (be sad or depressed) | 気が塞ぐ、落ち込む 自動 |
| | 比喩 | ブルーになる 自動 |
| He has been feeling blue every since Mary dumped him. |
| This dismal weather makes me feel blue. |
| indigo blue, indigo-blue | n | (dark blue pigment) | インディゴ、インジゴ 名 |
| indigo blue, indigo-blue | n | (dark-blue colour) | 藍色、インディゴブルー 名 |
| indigo blue, indigo-blue | adj | (dark blue in colour) | 藍色の、インディゴブルーの 形 |
| light blue | n | (pale blue colour) 色 | ライトブルー、水色 名 |
| The sky is usually light blue during the day. |
| navy blue | n | (dark-blue colour) 色 | ネイビーブルー、紺色 名 |
| Navy blue is a darker blue than cobalt blue. |
| My favorite color is navy blue. |
| navy blue | adj | (dark blue in colour) | 紺色の、ネイビーブルーの 形 |
| My school uniform is navy blue. |
| out of the blue | adv | figurative (unexpectedly) | 思いがけなく、突然、不意に、唐突に、前触れもなく 副 |
| | 比喩 | 青天の霹靂で、藪から棒に 副 |
| My cousins turned up out of the blue on Christmas Day. |
| pastel blue | n | (pale blue colour) 色 | パステルブルー、空色、薄青色 名 |
| She had to send her pastel blue jumper to the dry cleaners when she got ketchup on it. |
| pearl blue | n | (shimmery blue colour) 色 | パールブルー、淡灰青色 名 |
| Pearl blue is a popular colour for cars. |
| powder blue | n | (pale blue colour) 色 | パウダーブルー、淡青色 名 |
| The sky's such a pretty powder blue on sunny days. |
| royal blue | n | (bright blue colour) 色 | ロイヤルブルー 名 |
| Chelsea Football Club play in royal blue. |
| sky blue | n | (bright blue colour) 色 | 空色、鮮やかな青色 名 |
| true blue | adj | figurative (loyal, faithful) | 志操堅固な、忠実な、信頼できる、信念を持った 形 |
| A true blue fan remains loyal even when his team loses. |
| true blue | adj | UK, figurative, informal (politics: Conservative) 政治 | 保守的な 形 |
| turquoise blue | n | (bluish-green colour) 色 | ターコイズブルー、青緑色 名 |
| The ocean was a beautiful turquoise blue in the mornings. |
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