As nouns the difference between tier and solera
is that tier is animal while solera is (uncountable) a method of producing sherry in which small amounts of younger wines stored in an upper tier of casks are systematically blended with the more mature wine in the casks below.
tier
English
Etymology 1
(tie)
Noun
(
en noun)
One who ties (knots, etc).
Something that ties.
Etymology 2
From (etyl), (etyl) .
Noun
(
en noun)
A layer or rank, especially of seats or a wedding cake.
Verb
(
en verb)
To arrange in layers.
To cascade in an overlapping sequence.
solera
English
Noun
(
wikipedia solera)
(uncountable) A method of producing sherry in which small amounts of younger wines stored in an upper tier of casks are systematically blended with the more mature wine in the casks below
(countable) A large wine cask, on the bottom tier in this system, that contains the oldest wine
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