B2 adjective フォーマル

proficiency

/prəˈfɪʃ.ən.si/

Proficiency refers to a high degree of skill, expertise, or competence in a specific area, usually acquired through training and practice. It is most frequently used to describe a person's level of ability in a language or a technical field.

例文

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1

I am working on my proficiency in basic home repairs so I can fix things myself.

I am practicing to get better at fixing things around the house.

2

Evidence of proficiency in a second language is mandatory for this diplomatic role.

You must prove you can speak another language well for this official job.

3

His proficiency at video games is actually quite impressive to watch.

He is really good at playing video games.

語族

名詞
proficiency
副詞
proficiently
形容詞
proficient
関連
profession
💡

覚え方のコツ

Think of a 'PRO' (professional) who is 'effiCIENT'—proficiency is what makes someone a professional.

クイックテスト

Most international universities require international students to prove their English _______ before admission.

正解!

正解は: a

例文

1

I am working on my proficiency in basic home repairs so I can fix things myself.

everyday

I am practicing to get better at fixing things around the house.

2

Evidence of proficiency in a second language is mandatory for this diplomatic role.

formal

You must prove you can speak another language well for this official job.

3

His proficiency at video games is actually quite impressive to watch.

informal

He is really good at playing video games.

4

The entrance exam measures mathematical proficiency among graduating seniors.

academic

The test checks how skilled students are at math.

5

The manager noted a lack of proficiency in using the new cloud software.

business

The boss said the team wasn't skilled enough at using the new system yet.

語族

名詞
proficiency
副詞
proficiently
形容詞
proficient
関連
profession

よく使う組み合わせ

language proficiency the level of ability in a specific language
demonstrate proficiency to show that you have a certain skill
high proficiency an advanced or expert level of skill
technical proficiency skill in using specialized tools or machinery
level of proficiency the specific degree to which one is skilled

よく使うフレーズ

attain proficiency

to reach a certain level of expertise

proficiency test

an exam designed to measure skill level

functional proficiency

the ability to perform basic tasks in a skill

よく混同される語

proficiency vs efficiency

Efficiency is about doing things quickly without waste; proficiency is about how well you can do them.

proficiency vs fluency

Fluency is the smooth flow of communication; proficiency covers the entire mastery of a skill, including grammar and accuracy.

📝

使い方のコツ

The word is almost always followed by the preposition 'in'. It is typically used in formal or neutral contexts to describe measurable skill levels.

⚠️

よくある間違い

Learners often use the noun 'proficiency' when they should use the adjective 'proficient'. For example, do not say 'I am proficiency in English'; say 'I have proficiency in English'.

💡

覚え方のコツ

Think of a 'PRO' (professional) who is 'effiCIENT'—proficiency is what makes someone a professional.

📖

語源

Derived from the Latin word 'proficere', which means to make progress, go forward, or be useful.

文法パターン

It is an uncountable noun. Commonly used with the preposition 'in' + noun/gerund. Often follows verbs like 'show', 'demonstrate', or 'attain'.
🌍

文化的な背景

In the context of English language learning, 'Proficiency' often refers specifically to the C2 level of the CEFR scale.

クイックテスト

Most international universities require international students to prove their English _______ before admission.

正解!

正解は: a

関連単語

subposful

C1

Characterized by having an underlying purpose or a secondary, subtle intention that supports a main goal. It describes actions, statements, or strategies that contain a hidden layer of meaning or a subordinate objective that is not immediately obvious.

abcognacy

C1

The state of being unaware or lacking knowledge about a specific subject, situation, or fact. It describes a condition of non-recognition or a gap in cognitive awareness, often used in technical or specialized academic contexts.

transdynary

C1

A noun denoting a person or entity that bridges, operates across, or transcends multiple dynamic systems, power structures, or cycles of influence. It describes a connector who facilitates transitions and maintains stability while navigating between distinct, often conflicting, organizational or social hierarchies.

recredive

C1

A person who yields, backslides, or returns to a previous undesirable habit or state of mind. In specialized or archaic contexts, it refers to an individual who recants their beliefs or fails to uphold a commitment.

obdomance

C1

Characterized by an unyielding, persistent, and often stubborn refusal to change one's opinion, position, or course of action. It describes a state of being firmly resistant to external influence or logical persuasion.

adpulsward

C1

A technical or archaic term referring to a directional movement, inclination, or pull toward a central pulsating source or point of attraction. It describes the state of being driven forward or inward toward a specific impulse or signal.

underlaudency

C1

To fail to provide sufficient praise, recognition, or acclaim to an achievement or individual that deserves significantly more credit. This verb describes the act of downplaying or neglecting the merit of a noteworthy contribution.

semifidor

C1

Describes an individual or entity that exhibits only partial loyalty or a hesitant, non-committal stance toward a cause or person. It implies a state of being cautiously supportive without offering full commitment or total trust.

oververbery

C1

Describes language, writing, or speech that is excessively wordy or redundant to the point of being tedious. It refers to the habit of using more words than necessary, often obscuring the intended message with unnecessary fluff.

hypertheist

C1

To attribute an absolute or extreme divine status to a person, concept, or entity, often exceeding the boundaries of traditional religious belief. It describes the act of elevating a subject to the level of a supreme, all-encompassing deity.

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