If the child encounters "hear," we should show him that this is the base word in "hearing" and "hears."

如果孩子遇到这个单词，我们应该向他说明这个词是和的词根。

《柯林斯英汉双解大词典》

Lemmatization is the process of identifying the base, non-inflected form of a word.

词元化 是确定一个单词的固定的基本部分的过程。

youdao

To make matters worse, most Okinawans seem determined to hold Mr Hatoyama to his word about removing the base altogether.

更麻烦的是大多数冲绳人似乎认定了鸠山首相将基地完全迁出的诺言。

youdao

Through his use of the media, and with no base other than his own insistent word, Mr Berlusconi has caused a large number of Italians to distrust their magistrates and to believe that they have a programme to assault him.

ECONOMIST: Berlusconi: for and against

Imagine subjecting Shakespeare to a computational process like bioinformatics--not to chop the poor guy into DNA base pairs but to tease out 1, 000-word pieces (or strings) of his plays.

FORBES: Magazine Article

To spread the word, Lawrence is organizing free dog washes to help to build up her customer base, before she even opens the doors to her shop.

CNN: Air Force vet turns to dogs for cash