ablaut, barbut, besmut, bugout, buyout, catgut, cobnut, copout, cutout, devout, dimout, dugout, englut, hagbut, hognut, krubut, layout, mahout, midgut, miscut, outjut, output, payout, peanut, pignut, pigout, precut, putout, qiviut, ragout, redout, rotgut, rubout, runout, sacbut, sagbut, setout, sprout, tryout, umlaut, unshut, walnut

42 words

• A number of objects or events arranged or coming one after the other in succession.
• A set of stamps, coins, or currency issued in a particular period.
• Physics & Chemistry. A group of objects related by linearly varying successive differences in form or configuration: a radioactive decay series; the paraffin alkane series.
• Mathematics. The sum of a sequentially ordered finite or infinite set of terms.
• Geology. A group of rock formations closely related in time of origin and distinct as a group from other formations.
• Grammar. A succession of coordinate elements in a sentence.A succession of usually continuously numbered issues or volumes of a publication, published with related authors or subjects and similar formats.

1. A succession of regularly aired television programs, each one of which is complete in and of itself.

1. Sports. A number of games played by the same two teams, often in succession.
2. Baseball. The World Series.

• Linguistics. A set of vowels or diphthongs related by ablaut, as in sing, sang, sung, and song.

By Gabija PS.I got this from my dictionary!