is

Pronunciation: [iz]

Average Rank: 11

Source: ECDICT

be的现在式第三人称 [计] 加下标次序, 信息系统, 国际标准, 中间系统

v have the quality of being; (copula, used with an adjective or a predicate noun)
v be identical to; be someone or something
v occupy a certain position or area; be somewhere
v have an existence, be extant
v happen, occur, take place; this was during the visit to my parents' house"
v be identical or equivalent to
v form or compose
v work in a specific place, with a specific subject, or in a specific function
v represent, as of a character on stage
v spend or use time
v have life, be alive
v to remain unmolested, undisturbed, or uninterrupted -- used only in infinitive form
v be priced at

Difficulty: UNKNOWN

0: be

1: 3

Word Frequency Rankings

Formal, encyclopedic, and academic usage

Percentile: 99.9% (Top 99.9% most frequent)

99.9%

Out of 10,000 words in the Wikipedia corpus

#12

Conversational and colloquial usage

Percentile: 99.9% (Top 99.9% most frequent)

99.9%

Out of 10,000 words in the TV & Movie Scripts corpus

#13

Classical and literary usage

Percentile: 99.9% (Top 99.9% most frequent)

99.9%

Out of 10,000 words in the Project Gutenberg corpus

This word appears in 3 corpus/corpora, showing its usage across academic, conversational, and literary contexts.

Usage pattern: Most frequent in Wikipedia, making it particularly important for that context.