Words ending in -dge are usually examples of which sound grouping?

Words ending in -dge represent a specific phonetic structure that includes a consonant digraph rather than a consonant blend. The presence of the -dge indicates a specific spelling pattern that is linked to a particular sound grouping. Typically, the -dge ending follows a short vowel sound, such as in "badge" or "bridge," where the short vowel sound is instrumental in determining the spelling.

The correct choice centers around the understanding that the -dge sound is integral to the phonics concept of consonant digraphs, where two letters work together to produce one sound. This is distinct from consonant blends, which involve two or more consonants where each retains its individual sound, like "bl" in "black." Recognizing the phonetic strategy associated with -dge helps students understand how specific endings relate to their precedents, especially in the context of spelling and pronunciation.

In contrast, options referencing short and long vowel words do not adequately characterise the -dge combination, as it is the presence of the digraph and its phonetic implications that define the grouping. The option concerning two-syllable words is irrelevant in this context since the focus is on sound groupings rather than syllable counts.