Well I gave you the reference, and there isn't a Hebrew word that distinguishes a sphere from a round (but flat) object. The Hebrew word was around before Strong and can be traced as such because the jews study it as part of their tradition. They've produced some pretty good scientists by the way, considering they are such a small part of humanity.
I guess they weren't into geometry back then. The imagery of a tent admittedly seems more adapted to a round object, but on the otherhand, the dome is apparently spherical. I don't know how you fit a sphere to a flat object. Then again is the universe really a sphere, curvlinear, or what? You tell me.
H2329 - - Strong's Hebrew Lexicon (kjv)
The word is used 3 times in the bible, and this is how it was interpreted on three different occassions:
Strong's Number H2329 matches the Hebrew ’ (chuwg), which occurs 3 times in 3 verses in the Hebrew concordance of the KJV
Page 1 / 1 (Job 22:14 - Isa 40:22)
Job 22:14 Thick clouds 5645 [are] a covering 5643 to him, that he seeth 7200 not; and he walketh 1980 in the circuit 2329 of heaven 8064.
Pro 8:27 When he prepared 3559 the heavens 8064, I [was] there: when he set 2710 a compass 2329 upon the face 6440 of the depth 8415:
Isa 40:22 [It is] he that sitteth 3427 upon the circle 2329 of the earth 776, and the inhabitants 3427 thereof [are] as grasshoppers 2284; that stretcheth out 5186 the heavens 8064 as a curtain 1852, and spreadeth them out 4969 as a tent 168 to dwell in 3427 :