Words to the same effect. Woorde met dieselfde betekenis. Woorde van dieselfde strekking. 

─ Pharos, Spreekwoorde en waar hulle vandaan kom

plain words Based on the sound conviction that simplicity is a foundation of good style, and that the purpose of both speech and writing is to express rather than to impress, it is always better to choose a short, simple, familiar word in preference to a longer, more complicated one (provided the simpler word does really say the same thing as the longer one). Likewise it is better to use plain straightforward words rather than pretentious ‘vogue words’ (q.v.) and ‘fashionable phrases’.

─ Pharos, The Essential Companion for Writers and Editors