Translation guide
A trial or probationary period, often in employment, education, or product trials.
A period at the start of employment during which an employee's performance is evaluated before permanent status is granted.
Standard term for a probationary period in a job. Used in contracts and HR contexts.
試用期間は3ヶ月です。
The probationary period is three months.
試用期間中に評価が行われます。
Evaluations are conducted during the probationary period.
Means 'during the probationary period'. Often used in sentences.
試用期間中は給与が少し低くなります。
During the probationary period, the salary is slightly lower.
A limited time during which a product or service can be used for free or at a reduced cost to evaluate it.
Common for free trial periods of software, subscriptions, etc. '無料' means free.
このアプリは無料お試し期間が7日間あります。
This app has a 7-day free trial period.
Shorter version, often used in marketing. Implies a trial, but may not always be free.
お試し期間後に自動的に有料プランに移行します。
After the trial period, it will automatically switch to a paid plan.
Loanword from English 'trial'. Common in business and tech contexts.
トライアル期間中は全機能が使えます。
All features are available during the trial period.
A designated time frame for taking a test or examination.
Refers to an examination period, such as final exams at school.
試験期間中は図書館が混雑します。
The library gets crowded during the exam period.
More casual, using the loanword 'テスト'. Often used in school settings.
テスト期間が近づいてきた。
The test period is approaching.
A period set aside for testing something new, such as a system, process, or arrangement.
Used for a trial operation period of a system, machine, or new procedure.
新しいシステムは試験運用期間を経て本稼働します。
The new system will go into full operation after a trial period.
Emphasizes trying out a method or approach. Often used in project management or policy.
この制度は試行期間を設けて導入されます。
This system will be introduced with a trial period.
試用期間 is strictly for employment probation. お試し期間 is for product/service trials. Using 試用期間 for a free app trial would sound odd.
このアプリの試用期間は3ヶ月です。
The probationary period for this app is 3 months. (unnatural)
Directly translating 'test period' as テスト期間 may be understood, but it is not always natural. Use context-appropriate terms like 試用期間 or 試験期間.