1.
frequency of occurrence; frequency of appearance
How often something appears or occurs within a given context. Used in statistics, linguistics, science, and data analysis to measure how common a particular item or event is.
この漢字は出現頻度が高い。
This kanji has a high frequency of occurrence.
単語の出現頻度に基づいて学習順序を決めた。
We determined the study order based on word frequency.
出現頻度の低い語彙は上級者でも知らないことがあるので、辞書を引く習慣が大切だ。
Even advanced learners may not know low-frequency vocabulary, so it is important to develop the habit of using a dictionary.
Composed of 出現 (appearance, emergence) and 頻度 (frequency). A standard analytical term used across many fields — from corpus linguistics and natural language processing to biology and meteorology.
USAGE:
Particularly common in language learning and linguistics, where word frequency lists determine vocabulary curricula. Also used in scientific research to describe how often a phenomenon is observed. Can be shortened to just 頻度 when the context makes the meaning clear.
COMMON COLLOCATIONS:
- 出現頻度が高い: high frequency of occurrence
- 出現頻度が低い: low frequency of occurrence
- 出現頻度を調べる: to check the frequency of occurrence
- 出現頻度順: in order of frequency
SIMILAR WORDS:
- 頻度: frequency — the general term for how often something happens
- 使用頻度: frequency of use — how often something is used rather than just appearing
- 発生頻度: frequency of occurrence (events) — focuses on events happening rather than items appearing
- 出現率: occurrence rate — similar concept expressed as a percentage or ratio