7 文書を見つけるための辞書。

• period, geological period
• 時代, 時期, 期間
• a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"
• 岩の体系ができた地質学的時間の単位

• while, piece, patch, spell
• 時, 間, 期間, 時間
• a period of indeterminate length (usually short) marked by some action or condition; "he was here for a little while"; "I need to rest for a piece"; "a spell of good weather"; "a patch of bad weather"
• 何らかの動作や状態によって特徴付けられる確定できない期間（通常短い期間）

• length, duration
• 継続期間, 期間
• continuance in time; "the ceremony was of short duration"; "he complained about the length of time required"
• 時間内の存続

• span
• スパン, 間, 期間, 時間
• the complete duration of something; "the job was finished in the span of an hour"
• 何かの持続時間全体

• time interval, interval
• 隔たり, 間隔, 間, 期間, 時間
• a definite length of time marked off by two instants
• 2つの瞬間によって区切られる一定の時間

• term
• ターム, 期間, 期
• a limited period of time; "a prison term"; "he left school before the end of term"
• 所定の期間

• period, period of time, time period
• ピリオド, 時代, 年代, 会期, スパン, 時期, ピリオッド, 期間, 時間, 期
• an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
• 時間の量