Answer:
So sound device used predominantly throughout Sonnet 73 is Rhyme.
Sound devices are literary tools that writers use in prose and poetry to colour and add flavour to prose or a poem. It helps convey and reinforce meaning and makes the writ vibrant, emotive and pleasing using sound. There are several sound devices. Some of the most frequently used are rhyme, alliteration, repitition, and assonance
A rhyme is said to have been used when in prose, poem or song, the author uses like sounding words at the end of each sentence or each line. For example:
She loves to dance
He loves her stance
Notice how each word ends with a similar-sounding word dance and stance.
Step-by-step explanation:
In the Sonnet 73, It's easy to see that lines 1 and 3 each end with the same rhyme (behold, cold)
Lines 2 and 4 also share a rhyme (hang, sang)
Lines 5 and 7 (day, away)
Lines 6 and 8 (west, rest)
Lines 9 and 11 (fire, expire)
Lines 10 and 12 (lie, by)
Lastly, lines 13 and 14 (strong, long).
Cheers!