We don't have synonyms for jeshua yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are joshua and yeshua.
(n) :
Alternative spelling of Yeshua (“Jesus” or “Joshua”); a traditional Biblical transliteration, now uncommon among Anglophones as pronunciation of initial Hebrew yodh can be more clearly represented by English grapheme ⟨y⟩ whereas the most common modern English pronunciation of ⟨j⟩ has become [d͡ʒ]. (Compare the related English names Jesus and Joshua; the variants with [d͡ʒ] for ⟨j⟩ have become standard.) [Jesus]
(n) :
Alternative spelling of Yeshua (“Jesus” or “Joshua”); a traditional Biblical transliteration, now uncommon among Anglophones as pronunciation of initial Hebrew yodh can be more clearly represented by English grapheme ⟨y⟩ whereas the most common modern English pronunciation of ⟨j⟩ has become [d͡ʒ]. (Compare the related English names Jesus and Joshua; the variants with [d͡ʒ] for ⟨j⟩ have become standard.) [Jesus]