Spellings

The spelling 'TAEKWONDO' is correct. Taekwondo is a Korean martial art, and this is the standard romanization used internationally.

The spelling 'EMBARASSMENT' is incorrect. The correct spelling is 'EMBARRASSMENT' with two R's and two S's. The word comes from 'embarrass' plus the suffix '-ment', and both consonants are doubled.

SEPARATE is the correct spelling. The word is commonly misspelled as SEPERATE with an 'e' in the middle, but the correct form uses 'a' as the third letter (third syllable).

TOGATHER is incorrect. The correct spelling is TOGETHER - the word combines 'to' and 'get' with 'her', not 'to' and 'gather'. The given spelling incorrectly uses 'gather' instead of 'get'.

CONTINOUS is incorrect. The correct spelling is CONTINUOUS, which has a 'u' after the first 't' (con-TIN-u-ous). This maintains the pattern from the root word 'continue'.

MISPELL is incorrect. The correct spelling is MISPELL, with TWO 's' letters - the prefix 'mis-' and the root word 'spell' both start with 's'. The given spelling has only one 's'.

SUSEPTIBLE is incorrect. The correct spelling is SUSCEPTIBLE. The word begins with 'SUS' not 'SUS', and after 'suscep' it should be 'tible' with a 't', not 'table'.

WIERD is incorrect. The correct spelling is WEIRD, with 'E' before 'I'. This is one of the notable exceptions to the 'I before E except after C' rule.

THESAURUS is the correct spelling. This Greek-derived word meaning 'treasury' or 'storehouse' is spelled with 'TH' at the beginning, 'AU' in the middle, and 'US' at the end.

ALZHEIMIER is incorrect. The correct spelling is ALZHEIMER'S (with an 'E' before 'I' after 'Z'). This refers to Alzheimer's disease, named after Dr. Alois Alzheimer.

Crystallized is the correct spelling (option C), following the pattern of doubling the 'l' when adding '-ed' to 'crystal' (y changes to i). Options A, B, and D misspell the word with single or misplaced letters.

Hospitable is the correct spelling (option D), formed by adding '-able' to 'hospital' (no double 't'). The other options incorrectly double the 't' or use 'e' instead of 'i'.

Commemorate is the correct spelling (option C) - note the double 'm' after the prefix 'com-'. Options A, C, and D either miss the second 'm' or add extra letters incorrectly.

Bougainvillea is the correct spelling (option B), named after explorer Louis Antoine de Bougainville. Note the 'v' not 'vill' and the 'ea' not 'a' at the end. Options A, C, and D misspell it with letter substitutions or omissions.

Hippopotamus is the correct spelling (option B), with double 'p' after 'i' and 'o'. Options A and D misspell with single 'p' or extra letters, while C incorrectly ends with 'es'.