Spellings

Full-fledged is the correct spelling - meaning completely developed or mature. It comes from 'fledge' (to grow feathers), so it's '-fledged' not '-fladged'. The word is 'full' not 'ful', and it requires a hyphen as a compound adjective. 'Fullfledged' incorrectly omits the hyphen.

Ground-off is the correct spelling - it could describe something removed by grinding. 'Ground' (from grind) uses 'ou' not 'oa' (Groand), and 'off' is spelled with 'o' not 'a' (Ground-aff). The hyphen connects the verb participle and preposition correctly.

Long-stroke is the correct spelling - a compound describing something with a long stroke. 'Long' uses 'o' not 'a' (Langstroke), and 'stroke' uses 'o' not 'e' (Longstoke). The hyphen properly connects the two words in this compound term.

Man-of-war is the correct spelling - it's a compound noun referring to a warship or a jellyfish. It uses 'Man' not 'Mean', 'of' not 'off', and 'war' not 'waar'. The hyphens correctly connect all three parts of this multi-word compound. 'Man of war' without hyphens is incorrect.

Head-dress is the correct spelling - referring to clothing or ornamentation worn on the head. 'Head' uses 'ea' not 'ae' (Haedress), and the full word is 'dress' not 'dres' (Headdres). The hyphen connects the compound noun correctly.

Plumb-level is the correct spelling - 'plumb' means perfectly vertical or true, and it's used with 'level' in surveying and construction. 'Plumb' has 'u' not 'a' (Plamb), and it's 'level' not 'laval' or 'avel'. The hyphen connects the compound term correctly.

Radio-active is the correct spelling - describing materials that emit radiation. 'Radio' is spelled with 'dio' not 'deo' (Radeo), and 'active' uses 'ac' not 'acc' (Radioacctive). The hyphen connects the compound adjective correctly, though 'radioactive' as one word is also acceptable.

Son-in-law is the correct spelling - a family relationship term referring to your daughter's husband. It uses 'Son' not 'San', and 'in' not 'in' or 'il'. The hyphens correctly connect all three parts of this standard family relationship compound. 'Saninlow' and 'Sanilow' are phonetically incorrect.

The compound word uses 'knock' with a double 'k' followed by 'out'. Options A and C incorrectly spell 'knock' with a single 'k', while D incorrectly spells the full word.

'Hue-and-cry' is the correct spelling of this idiomatic expression. Option B misspells 'hue' as 'hua' and 'cry' as 'cary', C misspells both words, and D incorrectly combines them.

'Non-availability' is correctly spelled with 'non-' prefix and 'availability'. Option B misspells 'availability' as 'avalability', C is garbled text, and D is incorrect since A is valid.

Confession is the correct spelling. The double 's' comes from the Latin root 'confessio'. Remember that both 'confess' and 'confession' retain the double 's'. Common misspellings often drop one 's' or confuse the vowel placement.

Constellation is the correct spelling, with double 'l' and double 't'. The pattern comes from Latin 'con-' plus 'stella' (star). Remember the double consonants: con-STEL-la-tion. Common errors include dropping one 'l' or one 't'.

Depression is the correct spelling, using double 's' (de-press-ion). The root 'press' retains its double 's' in the derived form. Common misspellings often confuse the consonant cluster or vowel placement. Remember that 'depress' + 'ion' = depression.

Aggression is the correct spelling, using double 'g' and double 's' (ag-gres-sion). The root 'aggress' comes from Latin 'aggredi'. Remember that both the 'g' and 's' are doubled. Common errors include dropping one of either letter.