thumb

to make a fist with the thumb covered by the other four fingers, a gesture of luck equivalent to English "cross one's fingers" / to cross one's fingers; to wish good luck; to hope for the best

green thumb

(informal) roughly; according to an estimation or rule of thumb

(Austria) Alternative form of Pi mal Daumen

(idiomatic) to have a green thumb

rule of thumb

thumbnail

nominative/accusative/genitive plural of Daumennagel

plural of Daumenregel